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Yin-Yang Bomb

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"Light belongs to shadow, shadow to light
Chasing one another to the very end"
Bonnie Pink, Tales of Vesperia, "Ring a Bell" (translated)

The Ideal Hero is the champion of all that is good. Thus, his power will be that of light, he will dress in white or bright primary colors, like blue and red, and he will rarely take proactive action against the villain, preferring to play defensively and protect and defend the innocent. He will also champion the causes of love, courage, and hope. Only natural, such good powers could never be used for evil!

Of course, sometimes you have an Anti-Hero, the guy who wields the power of darkness, powers himself on negative emotions, and probably has an angsty past. He probably dresses in all black, too. In extreme cases, the Dark Hero would like nothing, nothing better than to wrap his hands around his archnemesis's throat and strangle the life out of him. Think Sabata, Raven, and Batman.

But our guy, the Yin-Yang Bomb user, doesn't care about all those things. He uses both. Not just that, but often, he will combine them into something higher and invariably ridiculously more powerful. Dark and light are not evil and good; they appear together a lot for good reasons. To resolve the storyline or beat the boss, the hero must grab the reins of both and wield them in a harmony of fusion.

Yin-Yang Bombers can use other diametrically opposed forces as alternatives to Light and Dark, such as Order and Chaos, Harmony and Discipline, Ice and Fire, or Love and Hatred.

Yet another variation is the result of a character who, whether from insanity, ignorance, indifference to the rules, or sheer desperation, combines two forces which every rule in the book says should not be combined. In the event that they survive this, they may thereafter retain this ability to harness the two forces at will.

Sometimes overlaps with Energy Donation or All Your Powers Combined. Naturally, good buddies with Dark Is Not Evil, or, in the case that the villain uses this, with Light Is Not Good. The result is frequently Non-Elemental, ignoring elemental resistances. Or, as demonstrated in a few cases, the effect may be able to completely destroy something and recreate it (usually as a child). Sometimes, an Enemy Mine with a villain may result in them combining their powers to do this. Contrast Mutually Exclusive Magic.

See also Yin-Yang Clash. As described in said page, yin and yang are actually 2 halves of the same thing that, when they "clash", become this instead, i.e a state where one harmonizes the yin and yang, called "taijitu" or "taikyoku". This is a subtrope of Ability Mixing, and by extension a subtrope of Meta Power.


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    Anime & Manga 
  • In Bleach, Ichigo (as well as the Vizard and Arrancar) wield both the powers of the Shinigami and that of the monsters they fight, the Hollow. Then it turns out this was played with as his Hollow side is also his Shinigami side and his other side represented by Old Man Zangetsu is his Quincy side, who is actually a spitting image of Big Bad Yhwach of 1000 years ago!
  • Cannon God Exaxxion: The title mech (and the alien's space travel) is powered by a matter-antimatter reaction. In fact, the main reason the aliens wanted the Exaxxion was for its massive reserve of antimatter.
  • In Cardcaptor Sakura, the two most powerful cards, the Light and the Dark, are always used together. Comes full circle in the final movie. The Nothing consumes the nameless card to become the Hope.
    • Clow Reed's parents were both powerful mages; he inherited both his English father's Western Magic and his Chinese mother's Eastern Magic, and combining the two made him the most powerful magician of all time. The Clow Cards, his masterpiece, were created through his unique hybrid magic.
  • In D.Gray-Man, Allen has the power of Innocence to destroy akuma as well as having powers from an akuma curse and those of the 14th Noah, the Musician, also known as the Noah of Destruction.
  • Digimon Frontier: Light-wielding Koji had to take on Koichi's dark powers to give the team the edge needed against Lucemon, who had learned to combine darkness and light into his ultimate attack.
  • In Dragon Quest: The Adventure of Dai this is the basis for Pop's most powerful magic attack, Medoroa: generate fire with one hand, ice with the other, and combine them to shoot a beam of annihilation that can destroy orhicalcum.
    • Flazzard himself is this, since his left side is made of flaming rocks and his right side is made of ice. This allows him to both use and parry magic of both elements. On top of that, he can summon a tower of each element to create a Curse Field, an area where all magic is negated and everyone's physical strength is cut in half - except that, due to his own dual nature, he is completely immune to the field's effects.
  • Fairy Tail:
    • In chapter 296, Sting and Rogue combine their White and Shadow Dragon-Slayer magic in a Unison Raid during their two-on-one fight against Natsu. It's not enough.
    • The evil future version of Rogue Cheney is able wield both elements by himself, having killed and devoured the magic of future Sting to do it. This time he is more than enough to defeat Natsu at full power. Fittingly, Sting himself gains the ability to use both after the present and good Rogue lets him eat his magic to get a power-up to fight Larcade of the Spriggan 12.
  • In Fullmetal Alchemist, Kimblee's preferred attack is this. Each hand has tattooed on its palm a symbol; on his right, there is a symbol that stands for the Sun, fire, and gold, and on his left, one that stands for the Moon, water, and silver. When he joins both symbols, the result is this literally.
  • GaoGaiGar's "Broken" right hand represents destruction, his "Protect" left hand represents protection. Individually, they function as a Rocket Punch, Broken Magnum, and a shield, Protect Shade. Combined, they form the Finishing Move Hell and Heaven, which destroys a Zondar completely while cleanly removing its human core. Less directly, in the OVA, TenRyuJin is the combined form of KouRyu and AnRyu (Light Dragon and Dark Dragon), and Big Bad Palparepa matches Hell and Heaven with his own God and Devil, though it's unclear if the latter really counts except in name. It's worth noting that in GGG, destruction isn't necessarily an "evil" power — GaoGaiGar's original form, Genesic, is hailed as a God of Destruction, with the explanation that destruction is necessary for new beginnings, and allows for "the challenge of a new hero".
  • Jujutsu Kaisen: This is essentially what Satoru Gojo's Hollow Purple technique is. His two main abilities, Red and Blue, work by repelling and attracting matter respectively, and Purple takes those two aspects and collides them together into one. The result is a giant orb of cursed energy that obliterates everything in its path.
  • In Kenichi: The Mightiest Disciple, there are two types of martial artists; Outward focusing Dou types that fight aggressively and turn their anger into a source of power, and inward focusing Sei types, who are calm and calculating and derive their power from inner peace and concentration. Then there is 'Seidou goui', a technique that combines the two for an explosive boost in power but that causes permanent damage to the body if used for too long.
  • My Hero Academia:
    • Invoked by Endeavor with his children. He married a woman with an Ice Quirk to complement his Fire Quirk. Quirks being hereditary, his intention was to engender a child with both, thus compensating for each Quirk's weaknesses — when overused, they lower/raise body heat to dangerous levels. Said child is Endeavor's fourth born: Shoto Todoroki, whose Quirk is generating ice from one half of his body and fire from the other. Combining them results in artificial heatwaves that produce a devastating blast. A literal Yin-Yang Bomb indeed.
    • For context, Endeavor's firstborn had the terrible luck of inheriting his mother's weakness to hot temperatures while having been born with an enhanced version of his father's Quirk — flames so hot they are blue. He burns his own skin and passes out whenever he uses his Quirk for extended spans.
    • At the same time, Shoto himself defies this trope out of resentment toward his abusive father. He consistently refuses to make use of his body's left side (the fire half) until a respected rival of his convinced him he was only hindering himself by doing so.
  • Naruto:
    • Chakra itself is made from the combination of both spiritual and physical energies, which are opposites and together create something vastly more powerful than respectively intellect and stamina. Every human is born with the capacity to generate it through a pathways system akin to the circulatory system, but to mold and release chakra, one has to learn to consciously mix both energies and direct them outside. Other than manipulating chakra itself, sometimes to the effect of Hard Light, people can turn it into elemental techniques, imbue weapons or paper, enhance their muscles, and use it to walk over water or vertical surface.
    • When the user changes the spiritual/physical energies ratio of already formed chakra, Yin (imagination) and Yang (vitality) Chakra Releases are the results. Techniques that mix them tend to be the most powerful and reality-warping ones in existence. The creation of the mighty Tailed Beasts, sentient chakra constructs, and the Sixth Paths Chakra are prime examples.
    • The Bijudama (Tailed Beast Ball), is composed of an 8:2 ratio of the poorly-explained positive and negative chakra. They are opposites and can only be harnessed by Tailed Beasts, but nothing else is known about them.
    • When Naruto and Sasuke have their final fight in the Valley of The End, they use their Yang and Yin Six Paths Chakra’s to create their most powerful forms, Asura Kurama Mode and Indra Susanoo and then use their respective strongest attacks in those forms at each other which destroys the valley and brings them back to their base forms.
  • Negima!:
    • Negima! Magister Negi Magi:
      • Takamichi and Asuna uses a technique called Kanka which fuses Magic and Ki to dramatically increase the user's abilities, with a stance reminiscent of GaoGaiGar's "Hell and Heaven" above. It is even called an "ultimate power".
      • Negi starts to learn Dark Magic after getting his ass handed down by Fate. Negi's "Dark Magic", however, as described in the supplemental materials, rely upon a long stream of (cited and footnoted) psychobabble that essentially says that, unlike the diametrically opposed Ying/Yang power of Kanka, the darkness of Dark Magic is all-encompassing, and even includes the powers of light. (Including some references to Erebos and Aether from mythology for good measure.) By embracing the all-encompassing darkness, he can still control powers of light, since they do not oppose, but the danger of the spell comes from the way that he stretches his sense of self so thin that he can lose control of his own powers. In chapter 314, Evangeline refers to Negi's way of doing things (not necessarily his magic) as the "gray path".
    • UQ Holder!, the sequel to Negima, has the main character Touta who was given both the Black of Mars and the White of Venus (Negi's Dark Magic and Asuna's Magic Cancel, respectively) at the same time in the hopes of creating a supremely powerful mage. Unfortunately, the two powers cancelled each other out, leaving him with the ability to use neither. Dana teaches him a spinning technique to act like a spiritual centrifuge, separating the powers from each other and allowing Touta to make use of them both, but only as long as he can keep up the "spinning".
  • In the climax of the Record of Lodoss War OAV miniseries, only Parn, wielding both the Holy Sword of Falis and the Demon Sword Soul Crusher, can stop the resurrection of the Mad Goddess Kardis.
  • The two-parter OAV story "Akane and Her Sisters" for Ranma ½ has Natsume and Kurumi "Tendo", who are both skilled in the arts of Ki Manipulation. Natsume is An Ice Person, able to generate super-frigid ki through her rug beater, whilst Kurumi can generate intense heat from her ribbon. Their ultimate technique is a Combination Attack called the Ring of Dragon's Fire, where Kurumi spins her fiery ribbon in a horizontal spiral before Natsume launches a bolt of cold ki down its center. The interplay of heat and cold amplifies the projectile into a Kame Hame Hadoken-style super energy blast.
  • Yu-Gi-Oh!:
    • Yu-Gi-Oh! 5D’s has Rex Goodwin grafting the arm containing the fifth Signer mark onto his body once he becomes a Dark Signer. Thus, he becomes a Signer and a Dark Signer at once, planning to use the powers of their respective deities to destroy the world and remake it in his own image.
    • Yu Gi Oh ARCV: It's strongly implied that Pendulum Summoning is derived from the energy that is created when something oscillates between two extremes, much like a Pendulum. In the English Dub, Reiji's Pendulum Summon chant describes his Pendulum Summon as harnessing the energy of the universe oscillating between Darkness and Light. Yuya says "Swing, Pendulum of the Soul", when he Pendulum Summons, foreshadowing that he's both The Hero and the Big Bad. Pendulum Summoning itself was created when the energies of Z-ARC and Ray mixed at the climax of their battle.
  • In YuYu Hakusho, after being reborn as a half-demon, going to the Demon World, and setting up a tournament with unquestioned rule over all Demon World as the grand prize, Yusuke mixes his human Spirit Energy and his demonic energy together to enter a sort of super mode. The last time we saw anything like this, the character using it managed to beat almost the entire main cast at the same time, and the powerup for Yusuke is rather similar. Also by alternating between spirit and demon energy shots his projectiles become notably difficult to block with energy shields.

    Card Games 
  • Magic: The Gathering is built on a foundation of five colors of mana, all of which embody different concepts and philosophies, as well as have different mechanics. Each color of mana has two "enemy" colors, which it is typically morally opposed to. Despite this, enemy colors are capable of working with each other to great effect, and both Wizards of the Coast's development and creative teams go to great lengths to ensure that each colored pair is given support in gameplay and makes sense flavor-wise. Enemy colored pairs have the potential to be very effective in gameplay, and certain pairs are widely used competitively (for example, one of competitive Magic's most dominant decks, Splinter Twin, is most often played using Blue and Red, which are enemy colors; even Splinter Twin decks that run another color still use both Blue and Red).
    • A rundown of enemy-color pairs: White/Black is harsh, controlling, and often cruel, combining White's desire for order and Black's desire for power. Blue/Red is creative, driven, and often a little crazy, combining Blue's desire for knowledge and self-improvement with Red's passion and impulsiveness. Black/Green is focused on decay and rebirth, combining Black's interaction with death and Green's celebration of life. Red/White is often heavily martial, combining White's discipline and structure with Red's anger and impulsiveness. Green/Blue is often focused on biology and creatures, taking Blue's scientific aspects (and occasional focus on the ocean and its creatures) and Green's focus on nature. note 
    • Going beyond just two-color pairs, the Tarkir block introduced five clans which inhabit the plane of Tarkir, each of which embodies a "wedge" of colors — that is, two allied colors and their shared enemy color (for example, the Mardu Horde is represented by the colors Red and Black, and their shared enemy color, White). Each clan smoothly integrates concepts from the enemy color it represents, and that color is (generally) just as important as the two allied colors, and makes each clan stronger as a whole.
    • More generally, gold-colored cards that require more than one type of mana to cast and creatures with abilities that require a color besides their own to use have been a staple of the game for quite a while, and are almost always designed to be stronger than equivalent single-color cards of the same cost, since they require you be able to produce multiple colors of mana and thus be more open to resource deprivation. Even before that, players themselves were encouraged to field more than one color to cover the weaknesses built into each one (including spells which can severely handicap a person whose cards are all of one color).
    • There are even literal spell cards with this effect. For example, the Golgari can combine Black and Green Mana to extremely destructive effects with their Putrefy and Abrupt Decay spell cards.
    • The Izzet League on Ravnica uses Weirds, elementals/golems made from two opposing elements (such as fire and ice, or electricity and earth)
  • Duel Masters originates from "Magic the Gathering", and therefore shares the similarity of having colors, called as "civilizations", each with its own "friend" and "enemy". Light and Dark, naturally, are one such example of "enemy" civilizations. However, much later on in the card game's lifespan, cards that have two civilizations at once are being introduced, and naturally, a Light and Dark one becomes a recurring combination, one example is Codecommand Death Marriage, a creature that's both Light and Dark civilization at the same time. There are also cards which feature seemingly conflicting race, like Dojiko, Courage Faerie, which is both Human and Snow Faerie at the same time, and Onimaru Head, Victory Rush, which is a Human, Dragon, AND Alien at the same time.
  • The Yu-Gi-Oh! card game plays with this, the main example being the now infamous "Chaos" archetype (which has been banned for years but radically shifted the metagame), consisting of three monsters summoned by removing from play a DARK-Attribute monster and a LIGHT-Attribute monster. One of these, Chaos Sorcerer, provides the page picture. There are plenty of cards that act similarly, but the most prominent example is the appropriately named "Light and Darkness Dragon", a monster that has two Attributes (LIGHT and DARK, obviously) simultaneously. That and, well, just look at it.
  • Cardfight!! Vanguard:
    • After duelling with Blaster Dark, Blaster Blade took up his sword and combined it with his own to become Majesty Lord Blaster, in order to fight Phantom Blaster Overlord.
    • Gold Paladin was initially formed from what was left out of the Royal Paladin and Shadow Paladin when both had all of their big players sealed by Void. It combines Royal Paladin's Power of Friendship mechanic with Shadow Paladin's You Have Outlived Your Usefulness mechanic. Many cards need to remove themselves or other cards from the field to activate their effects, though more frequently sending them back to the deck or to the soul than outright retiring. They then replace their lost board presence with cost-effective, but unreliable superior calls, along with having cards that reward calling multiple units from the deck.
    • "Fated One of Unparalleled, Varga Dragres" wields two swords: one that cuts through darkness and one that cuts through light.

    Comic Books 
  • Astro City: One issue subverts this, where Chrome Champion Steeljack faces off against a Fire/Ice Duo of thugs. They blast him simultaneously with both their powers... but as it turns out, while the ice guy could have frozen him solid and the fire guy could have melted him to slag, both together just cancels out their temperatures and leaves him with nothing worse than a ruined shirt. Steeljack mentally notes that if they'd alternated their attacks instead, they might have seriously hurt him.
  • Black Moon Chronicles: The thief Pile-ou-Face is dual-wielding two intelligent swords, one good and one evil. A prequel comic shows how he came to possess them, after walking on an evil warrior and a paladin fighting with said swords, and scoring a Mutual Kill (to their weapons' frustration). Both swords then urged Pile-ou-Face to pick up one and destroy the other. Instead he grabbed both, ignoring their recriminations.
  • Cloak and Dagger: Cloak and Dagger are not one person, but collectively they act as this.
    • In Chuck Dixon's Marvel Knights, Dagger absorbs Cloak's powers making her a straighter example of this tropes.
  • Green Lantern:
    • On some occasions, Hal Jordan has picked up Sinestro's yellow ring and used it in combat. The last time he tried during the Sinestro Corps War, Hal put on all the rings that his hands could hold and all-out attacked Sinestro with them. Sinestro just shrugged, took control of all that yellow light, and sent it back to him. Hal apparently can control fear a bit due to his stint as Parallax's host, but Sinestro has much more experience and control. It's not so much controlling fear as it is the wearer's ability to instill fear in others; hence why Batman was among the first to be offered a ring, his whole persona is based on instilling fear into his enemies. Hal has the same potential, both because many still fear what he will do if he ever wants to regain the power he held as Parallax and also because of the fear he spread while gaining said power.
    • He has also briefly wielded green and blue rings together as well; while they're not opposed to each other, they hold different objectives and their bearers have different methods.
    • Played straighter in Blackest Night, which sees Guy Gardner become both a Red Lantern and a Green Lantern at the same time. Since they were fighting superpowered zombies that could only be destroyed by both a Green Lantern and a non-green Lantern, this is very handy. What made that a Yin-Yang Bomb is that Green Lanterns Hal Jordan and Laira had both ended up as Red Lanterns, and had stopped being Green for the duration. Seeing how one is fueled by willpower and self-control, and the other is powered by losing self-control, operating both is probably a bit tricky.
    • Played still straighter in War of the Green Lanterns, in which Guy Gardner manages to wield a red ring and a violet ring together, the two colors at the farthest extremes of the Emotional Spectrum. They represent rage and love, making this the most strongly opposing ring pairing. Guy himself was having difficulty using the paired rings, until he found something he could focus his love and rage on at once: he loved the Green Lantern Corps, and he was enraged at it being destroyed.
    • At one point, a green and yellow ring chose Mother Mercy at the same time, but she quickly decided to reject the yellow ring.
  • Justice Society of America: During the Princes of Darkness arc (back when it was simply JSA), Dr. Fate goes through an arc wherein his powers have been stolen by the Big Bad, Mordru. He finally comes to the realization that he is both Chaos and Order, and so he can defeat Mordru, who is only a Lord of Chaos.
  • Pride High: Lightspot, a faculty member who controls both light and darkness. The darkness power allows him to teleport by traveling through the shadow dimension, which has been hinted to be a very evil place.
  • Saint Sinner: From the short-lived Razorline imprint of Marvel Comics, we got Saint Sinner, who wound up possessed by both a demon named Runesmith and an angel named Regina. He could "evolve" things with one hand and devolve them with another.
  • Spider-Man: Mister Negative. By day, Martin Li is the kindly, charitable owner of a soup kitchen whose visitors seem to be miraculously cured of their various ailments. By night the color-inverted Mister Negative is a ruthless gangster who warps Li's charitable works to his own criminal aim (unless it's Li who's covertly redirecting Mister Negative's efforts towards good).
  • Superman: In Superman Beyond, Quantum Superman fuses good matter Superman and evil antimatter Ultraman into a hyper-contextual amalgamation of two symmetrical concepts and then they power a giant Superman thought-robot and beat up the personification of Grimdark.
  • Witchblade: In the Top Cow Universe, the Witchblade is the balance keeper between the forces of Light and Darkness. As a result it has traits of both its parents, the Angelus and The Darkness.
  • X-Men:
    • Elixir has one hand that heals and one hand that kills for his powers. More specifically, he has golden skin (healing ability) with just a black stain (hurting ability). The black stain can move from one spot to another, and doesn't hurt him. Sometimes, the black stain enlarges so much that the entirety of Elixir's body turns black, and may the Maker help whoever pissed him off enough to make that happen. It is true, however, that at least in one occasion he (involuntarily) used both his hands (one golden and one black) on the same person, with... unusual results.
    • X-Men 2099 had Xian, who also had the one hand heals/one hand destroys schtick.
    • Magik/Illyana Rasputina tried to be an example (we'll see if she's still trying since coming back to life), practicing both dark and light magic. Sometimes she'd combine the two, like when she attempted to heal someone (light magic) while sitting backwards in a pentagram (dark magic). She kept falling to the dark side, though.

    Fan Works 
  • Ages of Shadow: During the climax of the Third Age arc, the combined power of the Sun Souls permanently seal Jade in the Shadow Netherworld. In the process, the Sun Soul energy mixes with Jade's spilled blood; this mixture of magics kickstarts life in the barren Netherworld, including birthing four nonhuman infants.
  • Chaos Theory Z: According to the Scroll of Knowledge at the end of Chapter 6, Kayos has the potential to become the Silver Sorcerer. At first, it seems like this just means he can wield Good and Evil magic in perfect balance. But when Baba brings up different colors of magic-users and Kayos asks about Silver, Baba says that the color is a myth, and only elaborates when Kayos told her what the Scroll said:
    Baba: Silver…which doesn’t exist and you must have read the Scroll of Knowledge wrong…are able to merge Good and Evil magic together. With all the others they focus on one type of magic…But Silver…Silver is able to take their Good and Evil magic and blend them together, make them work as one… and thus reach levels no other magic user has ever reached.
  • Child of the Storm:
    • The Sorcerer or Sorceress Supreme has to be able to control both light and dark magic, with some of the worst Dark Lords in history being Apprentices who failed to avoid being corrupted.
    • Wanda, Doctor Strange's anointed successor who takes on the role when he abdicates in the sequel, can not only handle dark magic, but wields Chaos Magic into the bargain. Later, Hermione also displays a much unwanted aptitude for it, largely because she's Wanda's daughter.
    • In the finale of the first book, Harry uses Phoenix Fire and Chaos Magic to put reality back together, having been manoeuvred into place by Doctor Strange.
  • On their own, Deku's quirks in Dark Light are manipulating darkness which he can use to create Hard Light constructs and creating a Holy Hand Grenade with his light powers. Using both at once creates an orb that detonates into a Sphere of Destruction.
  • In Fallen Kingdom, the wish-granting powers of the Beanstar and Bowser's subjugated Sticker Comet collided, leveling the Beanbean Kingdom beyond repair.
  • In The Freeport Venture, this turns out to be Sunset's special talent. Rather than just magic in general (like Twilight), Sunset is very good at learning magic that would usually seem like opposites, and knowing one school of magic usually means that she has a good grasp on its opposite as well. For instance, one of her most commonly used spells is to draw heat out of the air to cast pyromancies, and then take the cold that was left behind to cast cryomancies. And since Celestia generally only teaches her students light and good magic, you better believe Sunset dabbles in The Dark Arts.
  • A Hero's Wrath: Being Gohma Vlitra's reincarnation, Izuku possesses the Primordial Mantra unique only to Gohma, yet he also possesses his father's affinity to Wrath Mantra. Kalrow explains that it is like oil and water trying and failing to mix, only for... something... to come along and magically mix them together.
  • Lulu's Bizarre Rebellion: Geass and Stand cause anyone who are granted both to instantly die of a Brown Note, but get past that problem, whether by being in a refrain coma or being a Geass user possessed by Anubis, and the resulting Stand will be orders of magnitude stronger, and affect the mind in some way.
  • Caliga Illustro in Pokémon Master. Ash and Misty combine the elements of Shadow and Light, forming a massive sphere of pulsating white and black energy.
  • In the Pony POV Series, it turns out that the Rainbows of Light and Darkness (and thus the Elements of Harmony and Chaos) are 'siblings' in a sense and were both born from the Tree of Harmony, and thus are fully capable of working, in the event the users of both are good guys. The first time they were ever united was when they emerged and combined their power to grant Ponykind sapience and Dragonkind greater intelligence, the second time was when Magic Star used the Alicorn Amulet, which was forged from the Rainbow of Darkness, to weaken Lilith enough for Megan to finish her off with the Rainbow of Light, and the most recent one is in the Loose Canon Sequel Series to Dark World (Dark World Drabbles), where both sets have a full team of Bearers and thus can use them in tandem (which they do to permenantly kill Grogar when he returns after Discord's defeat).

  • The Ultimate Evil:
    • The concept of Others works like this: when someone finds their Other, they have found the half that makes them whole, conflicting yet combining with one's own strengths and weaknesses. They both give each other power by touch because then their conflicting chis attempt to merge, though binding Others to one another makes physical touch unnecessary. Should one of the Demon Sorcerers find their Other, they can be given extreme power as their dark chi melds with the good chi of their Other, making them able to have both good and bad chi, which in turn allows them to perform any and all forms of magic.
    • When Shendu possesses his Other Valerie, their combined chis overload her body with unstable power, giving Shendu all the more reason to alter the reality in order to separate from her before they both either die or become permanently combined.
    • Near the climax of The Ultimate Evil, Shendu and Valerie are finally bound through blood. The bond empowers Shendu so much that he defeats the entire J-Team during the battle for the Book of Ages and even binds Bai Tza, a sibling Demon Sorcerer, to the wall and renders her unable to move, while Valerie is able to cast more powerful force blasts than before.
    • Drago, Shendu and Valerie's Kid from the Future, has exceptional potential in both sides of magic due to being born to two bonded Others. This makes him able to bond with the Demon Sorcerers' chi without being overwhelmed. He's also immune to spells that should ward off beings of dark chi.
  • At the halfway point in Zelda and the Manacle of Cahla, it is revealed the Master Sword is this. When Zelda's mind/spirit is taken to a spiritual plane to see if she is a worthy wielder, she meets two spirits of the sword: Fi, representing light, and Am, representing darkness. No explanation for why Fi isn't the sole spirit as per canon is given, but Am, judging by his description and bombastic demeanour, is implied to be Ghirahim with a Meaningful Rename.
  • The Wizard and the Huntress: Jim has both equal affinity towards Light Magic and Dark Magic, a balance that will eventually be permanently offset when he comes of age.

    Films — Animated 
  • Jimmy Neutron: Boy Genius: Cindy Vortex tries to invoke this trope spiritually by practicing Tai Chi while drinking Purple Flurp soda.
    Cindy: Tai Chi promotes wellness, relaxes, and rejuvenates the body. Whereas Purple Flurp, being ninety-eight percent sugar, creates tension and a temporary rush of energy and mood swings. I figure if I do both of them together, I achieve perfect balance.

    Films — Live-Action 
  • The Force Awakens: Kylo Ren is specifically mentioned as being an embodiment of the light and dark sides of the Force. While he clearly would deny this heavily, it's shown in his fighting style; Ren may be a dark side user, but his primary Force technique is the light-side associated Force Stasis. After he kills his father, this becomes even worse and unbalances him, and this in combination with being shot in the gut and gradually injured gets his ass kicked in a lightsaber duel with two people vastly less experienced than him.
  • Warcraft (2016): "From light cometh darkness, from darkness cometh light". Khadgar manages to use this to find the strength to resist fel in fel itself without getting corrupted.

  • The Beginning After the End:
    • It is revealed that Sylvie is the hybrid offspring of both the Indrath and Vritra Clans through her parents Sylvia and Agrona. This means she has access to the opposing powers of both clans. Amusingly, despite it being revealed that neither of these clans are better than the other, Sylvie ends up being the only decent living member of both clans thanks to her being raised by Arthur away from either of them, making her ultimately a case of Bad Powers, Good People as well in spite of her Warring Natures.
    • Arthur becomes an unorthodox example thanks to a series of revelations from Volume 8 onward. After Sylvie performs a Heroic Sacrifice to save him at the climax of the previous volume, his body has become part draconic. Later on in the same volume, he encounters a Djinn Virtual Ghost who recognizes him as a descendant. This means in his current form he is a Half-Human Hybrid with dragon and Djinn ancestry. The "Yin Yang" part is that the former committed genocide upon the latter out of jealousy for the latter's ability to control aether, which the former believed was exclusively theirs to control. It is worth noting that while as stated above that Sylvie has Vritra blood which in turn would make Arthur part basilisk as well, this has had no bearing in the novel so far. The bottom line being that Arthur now exhibits the same enhanced physiology that both the Indrath and Vritra have as Asuras.
    • The Acclorite that Arthur receives from Wren eventually manifests as a spectral wolf named Regis, who acts as a Guardian Entity powered by aether and can act as a conduit for the Godrunes that Arthur acquires later on. Of the three disciplines of aether known to the Indrath, Regis specializes in the vivum path. This grants him the capacity for both creation and destruction, as not only can he heal, he can also manifest pure destructive energy should the situation call for it.
    • Volume 10 reveals that Arthur is not the only Asura/Djinn hybrid, as when he visits the Hearth he encounters the hybrid offspring of the Djinn and the Asclepius Clan of phoenixes after they tried to save the Djinn from the genocidal Indrath. One of these hybrids, Chul, ends up sparring with Arthur. Arthur decides to take him as an ally against both Agrona and Kezess as Chul wishes to avenge the death of his mother at the hands of Agrona and the Legacy as sign of alliance with Mordain (without alerting either Agrona and Kezess of his involvement).
  • A Certain Magical Index:
    • All attempts to allow a person to use both magic and esper powers have ended in failure, except for Tsuchimikado Motoharu, and he has to be very careful not to kill himself with his powers. Might be the result of his power being auto-resurrection
    • Also, Acqua of the Back has the powers of being a Saint and a member of God's Right Seat, which would be mutually incompatible if not for a third ability that removes such limitations.
  • The Chronicles of Thomas Covenant: Thomas Covenant becomes one of these in the second trilogy finale White Gold Wielder when he attempts to burn the venom out of himself by walking into the banefire, but instead fuses with it to make himself an alloy of wild magic and venom, restoring his mastery over the power.
  • High magic in The Dark Profit Saga is split into Solamancy (life, fire, and water) and Noctamancy (death, air, and earth), those few Omnimancers who can cast both are stereotyped as lunatics prone to blowing themselves up by accident. However, in the distant past the Twilight Council of Omnimancers kept the other mages in check, until they were overthrown in a coup, and the artifacts they created are insanely powerful by modern standards. In Son of a Liche, Jynn — who'd only practiced Noctamancy for over twenty years — is outed as an Omnimancer, but being one of the few Omnimancers with any formal training in magic, he's able to muster enough power to defeat the villain of the book and sets out to rebuild the Twilight Council.
  • In Discworld, Otto von Chriek has channeled the Yin-Yang Bomb for Mundane Utility. He's mastered the art of photography (using light to capture images), as well as obscurography (using pure darkness to capture images; the side effects tend to be disturbing).
  • In The Dresden Files, once Harry gains mastery over ice magic, coupled with his existing mastery of fire magic, he sometimes uses both, one after the other, to cause his opponents to explode into pieces. Given the difficulty of wielding opposing elements in tandem, using them like that wins him points in the supernatural community for being both very dangerous and stylish.
  • The Elric Saga: Elric of Melnibone wields a sword derived from the forces of Chaos, but works towards the cause of Law. In the end, he introduces enough Law into the world to help fledgling humanity survive and grow, only for the sword to immediately kill him.
  • Fixed Damage: While most people think [Light] and [Darkness] attributes are antithetical to each other and will mutually annihilate, that's wrong. They may be mutually antithetical, but they feed off of and strengthen each other when they clash, and they have a tendency to fuse into [Chaos] which precious little can stand against. Chrome and Yuno learn this by accident when they clash both with each other and with other wielders of their respective opposite element.
  • High School D×D:
    • Before an important fight, Issei makes a deal with Red Dragon Emperor Ddraig, the spirit of his Boosted Gear, to unlock its Balance Breaker form for ten seconds — in exchange, Ddraig's influence encroaches on his body and transforms his arm into that of a dragon. When Balance Breaker fails, it turns out that the arm itself was his backup plan — since it's no longer demonic, it isn't harmed by holy symbols, allowing him to use them against other demons with impunity. Later, Issei would take this further by integrating the holy sword Ascalon into his Boosted as a Blade Below the Shoulder, despite Ascalon being a weapon designed to kill both demons and Ddraig himself.
    • Before he became a demon with Spontaneous Weapon Creation abilities, Kiba was a survivor of the Holy Sword Project, an experiment by corrupt clergy to create a person who could wield dangerous holy weapons like Excalibur. Reuniting with the spirits of his deceased friends from the project would allow Kiba to unlock his Balance Breaker: "Sword of Betrayer", a powerful weapon that has both holy and demonic properties at the same time. This turns out to be a major Plot Point, as the sheer impossibility of someone merging the powers of God and Satan without them rejecting each other is proof that both God and Satan are dead, and the archangels who took over for God are unable to keep all of the laws of reality in place.
    • Issei is able to integrate a fragment of Vali's Divine Dividing into his own Boosted Gear and use its powers as his own, despite them being diametric opposites. By this point Ddraig is no longer even surprised, and claims that Issei can do this because he's simply too dumb to understand when something is impossible.
    • In volume 12, Issei receives a new body created from the energy of Ophis (the Dragon God of Infinity) and the flesh of Great Red (the Dragon God of Dreams). This is described as making him an Oxymoronic Being, a humanoid "Dragon of Dragons" whose power is both everything and nothing.
  • In Id, the title character has to negate a Yin-Yang bomb twice. The first time, instead of blowing up the continent, the energy is used to transport him 10000 years back in time; the second time, it conveniently moves him 10000 years into the future, netting in three weeks lived in the past. Later, it turns out what he did during those three weeks in the past has caused the creation of the world he's on and is the reason for almost the entire plot in the story.
  • Inheritance Trilogy: Godlings born of the God of Chaos and God of Order are vanishingly rare but very powerful, thanks to the conflict inherent in their nature. One of them is Lil, goddess of Hunger, who's pretty much insane by mortal standards but can drive off a deicidal monster that had already consumed the powers of multiple godlings.
  • The Left Hand of Darkness makes a poem about this (about the larger theme of balance in general): "Light is the left hand of darkness, and darkness the right hand of light." They're one and the same.
  • Lone Wolf:
    • In book 7, Castle Death, the owner of said castle, Lord Zahda, uses a Lorestone and a Doomstone in combination.
    • Lone Wolf himself can wield a holy weapon like the Sommerswerd and infernal weapons like Helshezag. (Theoretically not at the same time, but that doesn't stop some players to have houseruled Dual Wielding.)
    • The villain Vonotar the Traitor is said to be one of the only people able to master both the good-aligned Left-Handed Magic and the evil-aligned Right-Handed Magic.
  • Mistborn:
    • This becomes the entire point of the end of Mistborn: The Original Trilogy. The prophecied Hero of the Ages destined to combine the powers of Ruin and Preservation could be male or female based on the ancient grammar. It turns out he's a eunuch instead. Explored further in the Sequel Series Wax and Wayne: holding two diametrically opposed Shards makes Sazed, then known as Harmony, extremely powerful, but also makes it very difficult for him to take action.
    • In addition, this trope is the secret of the immortality of the Big Bad of the first book. The first book reveals two magic systems: Allomancy, which works by ingesting various metals and consuming them to get temporary power-ups, and Feruchemy, which works by saving up a person's own attributes like strength or health in metals and consuming them later in an Equivalent Exchange. Both are inborn. Allomancers are generally more dominant in society and more oriented towards combat, but we're told that Feruchemy has its own strengths and weaknesses and can do things that Allomancy can't. In the end, we learn that if someone is both an Allomancer and Feruchemist, storing up attributes in metal then burning the metal gives them back ten times what they lost; doing this with youth and health makes them effectively immortal.
    • That said, Feruchemy and Allomancy aren't opposites. The opposite of Allomancy is Hemalurgy, which is of Ruin just as Allomancy is of Preservation, and requires the user to steal power from others. Unlike the other two, it can be used by anyone, including Allomancers.
  • Old Kingdom: Chaotic Free Magic and the Rules Magic of the Charter do not mix well. Nonetheless:
    • The Abhorsen bloodline have the unique ability to use a form of Free Magic Necromancy that's tempered by the Charter, which lets them command the dead without the usual This Is Your Brain on Evil effects.
    • After being possessed by one powerful Free Magic spirit and baptized into the Charter by another, Nick Sayre becomes host to both. This lets him empower or dispel other mages' Charter spells, and even act as a substitute Background Magic Field for them in regions the Charter can't reach.
  • The Lord's throne in Paradise Lost is secured upon a cave where light and darkness turn around each other infinitely, creating in Heaven something like day and night or maybe morning and twilight.
  • Most of the truly important mages of either faction in the Saga of Recluce are gray mages, capable of using both order and chaos magic. These tend to be the most powerful mages in the world in whatever time they happen to live.
  • Shadow of the Conqueror:
  • In Skulduggery Pleasant, Valkyrie Cain sort-of becomes this when she takes up Necromancy.
  • Slayers:
    • The final Big Bad of Slayers TRY is the fusion of Mazoku Lord Darkstar and its opposing god Volphied. It took the a spell that combined the powers of Ruby Eye Shabranigdo and Flare Dragon Celphied, channeled through the Dark Star weapons, in order to defeat him. The spell had the effect of a complete rebirth, allowing Filia to raise the Big Bad as a child.
    • In Slayers NEXT, the timid white mage Sylphiel mastered the powerful Black Magic spell Dragon Slave just to impress the guy she liked.
  • Star Wars Legends:
    • Mace Windu's Vaapad form, detailed in Shatterpoint, definitely counts; he refined the lesser lightsaber form of Juyo into a devastatingly effective technique by allowing himself to enjoy the fight, which channels the Jedi's aggression but also skirts dangerously with the Dark Side. He was the only Jedi to master Vapaad without succumbing to the Dark Side (although in fairness, Depa mastered Vapaad and then fell to the Dark Side from something else).
    • Knights of the Old Republic features a good-aligned Force user with a criminal past who's living in a self-imposed exile from the Jedi Order and draws equally on the Light and Dark sides to accomplish his goals.
    • In the novel tie-in to Star Wars: The Old Republic, Revan, when Revan recovers all of his memories and thus his full knowledge of the Dark Side, his most powerful Force technique is to simply gather up as much of both as he can hold... and smash them together. It's enough to knock back the Sith Emperor, an otherwise Invincible Villain who is fighting with the Dark Side energy of an entire world's population.
    • Speaking of the Sith Emperor, as Valkorion he became interested in the Light, using Revan as a connection to the Light for three centuries to study it and see the future through it, and promoted the 'absolute power' philosophy among his Knights of Zakuul, encouraging them to do this by learning from both Light and Dark and share all they learned with their fellows. Given that the results were some exceptionally powerful warriors, he may have been onto something.
    • Averted with Darth Gravid, a Sith Lord mentioned in Darth Plagueis, who believed the Sith’s strict adherence to the Dark Side was a dead end and so began practicing Jedi ideals as well. Instead of making him stronger, this ended in him having a breakdown and destroying centuries’ worth of accumulated knowledge and artifacts in an attempt to give the Sith Order a fresh start, before his apprentice finally managed to kill him.
  • The Stormlight Archive:
    • In the second book, a new type of highstorm, one of Odium, is summoned, going the opposite direction of normal storms. Shallan briefly hopes that they'll just cancel each other out, but Pattern warns her that they will feed off each other and increase in power. When it finally happens, the violence is so destructive that entire plateaus are thrown thousands of feet into the air.
    • In the fourth book, it is discovered that any two of the three Lights can be combined into a new Light by the creation of a Rhythm that unites the rhythms of the appropriate two Shards. Honor's Stormlight can be blended with Cultivation's Lifelight to create the essence of their divine child the Sibling, while the discovery of the titular Rhythm of War allows Stormlight to be blended with Odium's Voidlight to create a new energy known as Warlight.
    • Even closer to this trope, it is also discovered that you can invert a Light by a process involving singing the opposite tone to that Light's native tone. This "anti-Light" and the corresponding true Light violently annihilate each other on contact, which can cause massive explosions. More importantly, anti-Light is the only way to truly destroy creatures of Investiture such as spren.
  • Uprooted: Sarkan's scientifically precise magic and Agnieszka's intuitive Wild Magic are Mutually Exclusive to each other, but they learn to join their magic to create vastly more powerful effects than they could manage alone. Agnieszka describes it as his magic creating a scaffold for hers to grow on, or being driven by hers like a waterwheel by a river.
  • The Wheel of Time features Mutually-Exclusive Magic of the sort where men and women get their powers from different sources, produce even identical magical effects in completely different ways (most explicitly mentioned when certain people learn how to Travel), and even use opposite techniques to just access magic... but the most powerful magical feats, like the cleansing of saidin or the Bowl of the Winds, require the use of female and male magic together. The symbol for the union of male and female magic is itself a simplified Yin-Yang. In the climax of the series, Rand uses both the One Power (good) and the True Power (evil) to seal the Dark One's prison much more effectively than Lews Therin did.

    Live-Action TV 
  • Charmed (1998):
    • In "Apocalypse Not", Prue and War get temporarily displaced when the Charmed Ones and the Four Horsemen accidentally combine powers. It takes another combination, this time intentional, to bring them back.
    • The episode "It's a Bad, Bad, Bad, Bad World, Part 1" had Phoebe and Paige traveling to a Mirror Universe and fighting their Evil Twins. The battle between the two Paiges causes explosions due to their opposing powers colliding. Later, they team up with their evil twins and form "The Power of Four" by combining their powers to devastating effect.
  • Dragons in the Game of Thrones universe are supposedly embodiments of fire. The White Walkers are supposedly embodiments of ice. One would think that according to this logic, the Night King couldn't raise a dragon from the dead. Oh, how wrong you'd be...
  • Kamen Rider:
  • Once Upon a Time:
    • Henry Mills has one hell of a Tangled Family Tree; his paternal grandfather is The Dark One, Rumplestilskin, his paternal great-grandfather is Peter Pan, who is a terrifying sociopath in this timeline, his maternal grandparents are Snow White and Prince Charming. His adopted mother is Snow White's stepmother, and her mother was even worse. His birth mother is explictly called a prophesied "Savior". The kid has just hit his teens, but survived the same sleeping curse that hit grandma Snow, used it to deliver an artifact to Sleeping Beauty via dreams, used the heart-ripper spell his adopted mama is fond of (though he used it on himself), and has shown to have some of the best and worst traits of all of the above kinfolk. Some fans just joke he ought to be handed a keyblade and be done with it.
    • Regina may count, too. She was already a powerful dark sorceress, but as of Kansas, she now has powerful light magic as well. In season 4, she seems to be using both (ripping out hearts is definitely dark magic, but the protection spells in Fall were probably light magic since her Shattered Sight persona couldn't get through them).
    • Then we have Emma Swan. She is two different extremes of both light and dark. Not only is she the ultimate creation of True Love, but she's also the Dark One.
  • The Outpost: Both the White Kinj and the Black Kinj give their hosts Complete Immortality... unless said hosts come into contact with each other, at which point the Black's power overcharges and kills them both. In the Season 3 finale, Gwynn sacrifices herself by taking on the Black to kill Yavalla, who has the White.
  • Common theme in Robin of Sherwood. Robin and his sword Albion are specifically said by Herne the Hunter to have the "power of light and darkness".
  • In the Star Trek universe, most starships derive the vast energy needed to travel faster than light and to unleash devastating weaponry by harnessing matter and antimatter. The former method requires that streams of both matter and antimatter be annihilated in a controlled manner by passing them through dilithium crystals. The latter method packs matter and antimatter into projectile torpedoes and forces them together to make devastating explosions in the multi-megaton range.
  • In the Ultra Series, the heroic Ultramen usually have powers of light and their major enemies have powers of darkness. However, occasionally an Ultraman will acquire more power by combining them both:
    • In Ultraman Orb, Gai's fourth form is Thunder Breastar, a fusion of Zoffy, leader of the Ultra Brothers, and Ultraman Belial, the franchise's Satanic Archetype. It even outmatches his later Super Mode in terms of brute strength.
    • Ultraman Geed, like Orb, gets his different forms by combining the powers of two other Ultramen; and two of his forms use Belial along with a more heroic Ultra due to the fact that Geed is Belial's son. His default form, called Primitive, mixes Belial with the original Ultraman, while his Royal Mega-Master Super Mode uses Belial with Physical God Ultraman King. Geed is credited as being an especially powerful Ultraman, partly due to inheriting good genetics from Belial (who was famed for his strength even before his fall to darkness, and Geed is not just Belial's son but his clone), but it's easy to think that the combination of light and darkness was also a factor.
    • Referenced but downplayed in Ultraman R/B. The heroes create their Super Mode Transformation Trinket by activating Light and Darkness powers together, but the Super Mode itself is portrayed as All Your Powers Combined of six elements, and it doesn't actually use any elemental abilities (other than Light, which all Ultramen have anyway). (And while they're not actually Power Copying other Ultramen this time, the Transformation Trinkets still have images of them for merchandising purposes; and the Darkness one, of course, has a picture of Belial.)
    • In Ultraman Taiga, the villainous Ultraman Tregear has mixed light and darkness powers, reflecting his personal philosophy that the distinction between the two is meaningless. He's more of a schemer than a fighter, but is nonetheless strong enough to take on multiple Ultramen at once. Averted for Taiga in the same series, as Tregear tricks him into regularly using dark-powered attacks with his regular light abilities; this doesn't make him noticably stronger but instead has a gradual corrupting effect.
    • Ultraman Z, again, copies other Ultramen and gets a form that involves Belial. Z's Super Mode, Delta Rise Claw, combines the light of Ultraman Zero, the darkness of Belial, and the mixed powers of Geed. While the powers of the form itself manifest only as light, it's still extremely powerful. Z can also wield a sword of darkness themed on Belial with its own powers; which is commonly associated with Delta Rise Claw but not exclusive to that form.
    • Ultraman Trigger was once a giant of darkness before turning to the light. In the final episode, he temporarily reabsorbs his old dark powers and combines them with his newer light-based ones, gaining a new Super Mode called Trigger Truth.

  • In Tales of Demons and Gods, one of Nie Li's more powerful demon spirits is the Fanged Panda. While generally described as weak and useless, much like all of Nie Li's abilities, it's simply got a slow and steady growth... and one of its most powerful abilities is literally called the 'Yin-Yang Bomb', firing two balls of light and dark which combine to hit hard.

    Myths & Religion 
  • Defied in The Bible. As 2 Corinthians 6: 14 puts it, "For what do righteousness and wickedness have in common? Or what fellowship can light have with darkness?". It's an analogy referring to physical light and darkness, not figurative. It's saying that righteousness and wickedness are as alike as light and darkness (meaning mutually exclusive), not that righteousness = light and evil = dark.
  • In the religion of Voudoun, a bokor is someone who "serves the loa with both hands", meaning they combine light and dark magic.

    Tabletop Games 
  • The Shadow Sun Ninja Prestige Class in Dungeons & Dragons 3rd Edition. The requirement of the class is a good alignment, despite most of the powers being rather dark in nature, or mixing light/darkness (and hot/cold) for both healing and hurting. This is probably a necessity to not give in too much to the dark side, a definite risk with the peak abilities of the class.
  • Eternal equilibrium, a 9th level Elementalist card in Gloomhaven. If you consume both light and dark with it, not only does it deal high damage for a reusable Area of Effect attack, but it also applies both curse and muddle to every targets. Curse add a Critical Failure card in the enemy attack deck, and muddle force the enemy do draw two cards and take the worst when attacking, maximizing the miss chance from the curse.
  • Major NPC Vaslov Jakoba in Ironclaw can cast both black and white magic, a source of much consternation in the Church. Mechanically, there's nothing preventing player characters from doing the same.
  • The Solarian class in Starfinder, who derive power from the balance between cosmic forces, alternating between dark graviton powers and radient photonic powers. A Solarian who focuses on building up one aspect of their powers at the expense of the other will find all their powers becoming more limited from being out of balance.

  • In the Ignition Trilogy of BIONICLE, Takanuva was struck by the shadow leeches of the Makuta Icarax, causing him to become a Toa of Light and Shadow. While he was able to avoid being fully corrupted, it did cause alter his personality to become The Unfettered, becoming more ruthless than most Toa.

    Video Games 
  • "Shadow" enemies in AdventureQuest use Darkness and Light attacks and take reduced damage from both. During the quest chain that features them players can obtain rewards that let them wield similar powers.
  • Discussed in Alan Wake's American Nightmare by Heavy Mithril Fake Band Old Gods of Asgard in their song "Balance Slays the Demon," as an in-universe attempt by the band to steer the protagonist toward defeating the game's villain via lyrical metaphor.
    Ever the light casts a shadow
    Ever the night springs from the light
    In the end, it's never just the light you need
    When balance slays the demon, you'll find peace
    In the end, it's never just the dark you seek
    When balance slays the demon, you'll find peace
  • A long part of Albion's gameplay requires the player to retrieve two scrolls that together, hold the knowledge to combine magic and technology, which are polar opposites of each other. The end result is a magical seed that can absorb nuclear energy and grow into an entire jungle in just a few minutes, spurting vines strong enough to crush an otherwise indestructible supercomputer, and overgrow the mining facility it controlled.
  • In Ancient Domains of Mystery, you can pull this off quite literally if you dip a scroll of corruption removal/chaos resistance (in versions 1.1.1 and earlier) with a potion of raw chaos. There is a unique death message if your character gets killed by the resulting fireball: "ripped apart when confronting Order and Chaos".
  • In Arc Rise Fantasia, both Dynos and Cecile have an Excel Act each (Doubly Dark and Light and Dark!, respectively) that merges a mass of light and darkness together to form a huge combined beam. Apparently it's a "forbidden art".
  • In Azure Striker Gunvolt 3, one of the ATEMS Knights is Prado "the Dual Knight", so named because her Septima "Hot & Cold" grants her the ability to generate fire and ice from different sides of her body and use them in tandem, with her transformed state has her armor colored red on one side and blue on the other. Notably, this is a very unique ability as previous Septimas, while capable of branching into various powersets, usually have the powers be closely related rather than such an obvious duality, to the point the heroes assume seeing the elemental carnage she left in the stage that a pair of Adepts had done it rather than just one. It's for this reason she considers herself a Born Winner. Fellow ATEMS Knight Sistina postulates in the epilogue that Prado's true Septima is actually some form of temperature control.
  • Baten Kaitos:
    • The game inverts this trope. If a character chooses moves with opposing elements in the same turn, the elemental damage cancels out, and the combined result is weaker than an equivalent turn made from moves with non-opposing elements. Two characters, Lyude and Savyna, have offensive abilities focused on conflicting element pairs (light and darkness for Lyude, fire and water for Savyna), making them difficult to use effectively.
    • The prequel, Baten Kaitos Origins, plays this straight by revamping the combat system. Several EX Combos use elements opposed to each other, including Guillo's tremendously powerful light and darkness combos.
  • Bayonetta:
    • The title character is born of both a Lumen Sage who turns out to be Father Balder and an Umbra Witch. That said, she was raised as an Umbra Witch and has yet to be seen using the benefits of the light side.
    • The final boss of Bayonetta 2 took the Eyes of the World from Bayonetta and Balder, meaning he's using both light and dark. Nothing in his attacks really makes it look like he's using them. Also, the fight is a team up between both Bayonetta and Balder.
    • This trope is mentioned in the theme song (still yet to be used).
      Bayonetta(?): I will dance and I'll defeat them through the light and the dark...
    • Also from the sequel, the climax of the Final Boss has Balder and Bayonetta perform a summoning together, calling forth Omne, Controller of Creation, who wields the powers of both Paradiso and Inferno.
  • The Binding of Isaac:
    • The game has no mutual exclusion between holy and Satanic items beyond the game's usual "two items that give different effects don't always synergize," so it is possible and even likely to have a run where the player character is given both divine blessings and unholy curses. The mechanics behind angel rooms, where the player must pass up on making a Deal with the Devil or use health in a sacrifice room to even see one, discourages getting items from both pools, but it is still possible. Angelic and demonic items are not even entirely exclusive to angel/devil rooms — bosses can drop a Halo or a Pentagram, for one example.
    • Both Libra and Duality are this in a single item. The former makes Isaac half-black (the general color used to represent demons in this game) right down the middle, yet its effect is to balance his items and stats, rather than any powers related to angels and demons combined. The latter makes half of Isaac's head glow and the other half give a weird "darkness" effect, and its ability is to always give the player a choice of angel rooms or devil rooms should either one normally show up.
  • Boktai:
    • Django is of both Solarian and Lunarian blood, which lets him wield light while being extremely resistant to darkness. Nevertheless, he's bitten by a vampire (specifically, his father) in the second game and becomes "half" vampire. He gains enough control that he can shift between normal and vampire mode at will. This symbolism is broken in the third game where his Karma Meter decreases the more he uses his vampiric self.
    • Done straight in the final boss of the first game and the second to final boss of the second game where both Django and Sabata use their respective Light and Dark guns to power the pile driver and use the Wild Bunch attack, and in the second game where Sabata uses his black hole attack to pin down a strong and agile boss so Django can use his Gun Del Sol and deal a lot of damage.
    • Also done straight in Boktai DS (Lunar Knights), where the entire point is for Django and Sabata to work together.
  • The boss Orthros in Bravely Default is a two-headed dog with one head that breathes fire and one that breathes ice. While both heads are active, they can combine their powers to produce "Blazzard", a devastating Non-Elemental attack.
  • Castlevania:
    • Castlevania: Order of Ecclesia:
      • The Item Crash between a light glyph and a darkness glyph (except for Dominus) results in a literal, and very powerful, Yin-Yang Bomb. It's also a Game-Breaker. 4 hits of that attack and within 10 seconds you've just beaten the final boss.
      • Albus also uses his "Balance Cannon Shot", firing a light projectile and a dark projectile which whirl outward in a helix. It hurts.
    • Castlevania: Lords of Shadow: Gabriel Belmont can use both light magic, causing his attacks to heal him, and shadow magic, dealing more damage. The boss fights against the Silver Warrior and the Final Boss, Satan, require the use of both.
    • Castlevania: Lords of Shadow 2: Dracula is infused with powers of Void and Chaos. Void manifests ice by draining the heat and magic energies from targets and giving a portion to Dracula as health. Chaos manifests fire through sheer unrelenting force that powers physical destruction and rips shields to shreds. Harnessing these opposing, soul-rending powers simultaneously is what makes Dracula unkillablenote .
  • Chrono Cross:
    • While each playable character has one of six innate element colors that makes spells of that color stronger when they cast it, only a handful of spells are locked to a specific innate. The rest, including spells of the opposite color, can be used freely, and there are a few cases where equipping a character with the opposite element from their innate can be useful. For example, equipping Serge with both white and black elements can help smooth over the part when Serge is forced into Lynx's body, changing his innate from white to black for about a third of the game.
    • This is a feature of an optional character, Pip/Tumalu. You can evolve him as light/light, dark/dark, or light/dark (or dark/light, works the same way). The third is often considered the best standalone. Also, to get the Good Ending, you have to pull this trope off with all three Element colour conflicts (white/black, red/blue, yellow/green; these represent light and space/gravity and hell, fire and lava/water and ice, and earth and lightning/nature and wind.
  • Chrono Trigger has the Antipode dual-tech chain (Antipode Bomb in the DS remake) created by combining Marle's ice magic and Lucca's fire magic. (It deals shadow-type damage, like all multi-element combos.)
  • Dante from Dante's Inferno uses the holy cross and the infernal deathscythe.
  • In Dark Souls III, Pontiff Sulyvahn fights the Ashen One by Dual Wielding greatswords that use diametrically opposed powers: Abyss Sorcery in the Greatsword of Judgment, and the Profaned Flame in the Profaned Greatsword.
  • In Demon's Souls, the greatswords Soulbrandt, which becomes stronger if its wielder's soul is demonic, and Demonbrandt, which becomes stronger if its wielder's soul is untainted, can be forged together into the Northern Regalia, a greatsword that is at its strongest if its wielder's soul is purely demonic or untainted.
  • Destiny:
    • The Awoken were created by a Yin-Yang Bomb; they were human colonists trying to flee the solar system during the Collapse, but they weren't fast enough and got caught in the crossfire between the Traveler and Darkness. The Light and Dark energies bombarding their ship combined to create a singularity that sucked them into a newly created pocket dimension and mutated them into the ethereal Transhumans they are now. This is why they wield powers no other beings possess; they're a strange sort of middle ground between the Light and the Dark. The Exo Stranger outright referred to them as "wavering between the Light and Dark".
    • In the sequel, Destiny 2, in the "Beyond Light" storyline, Guardians themselves become this, gaining Darkness-based abilities in addition to their usual Light-based ones. According to the Exo Stranger, A.K.A. Elizabeth "Elsie" Bray, Darkness exists in every living being, just like the Light. In the timeline she comes from, Guardians turned to the Darkness in desperation and became corrupted by it. In "Beyond Light", Elsie seeks to prevent history from repeating itself by helping Guardians to master the subclass Stasis, granted from the Europan Pyramid, which takes form as the power of ice.
      • The storyline going forward has Guardians gain further Darkness abilities to combat the new more powerful threats emerging. In "The Witch Queen", Guardians unlock the power of "Deepsight", a Dark-based power than enables them to look into the past and see through the illusions of Savathun's Throne World. In "Lightfall", the Guardians gain the subclass Strand, a second Darkness subclass that draws on the Weave and the "river of souls" that flows through all living beings.
      • Savathun herself becomes this during "The Witch Queen". After she is freed from her worm, she dies, but is later resurrected by the Traveler, being reborn with the power of the Light. Her new army consists of similarly revived Hive Guardians like herself, called the Lucent Brood. Despite their new Light-based powers, they retain many of the elements from their previous lives of drawing upon the Darkness. They continue using their old Hive weapons, weapons made using Hive magic, which draws from Darkness, and Savathun herself continued using Hive magic for her own plans.
      • The Raid for the Lightfall expansion, "Root of Nightmares", revolves around Nezarec, one of the Disciples of the Witness, who was reborn as this trope. Once a being of immense Dark power, after he was killed by Savathun, his body was buried in the Witness's Pyramid. At the start of the "Lightfall" storyline, the Traveler launched a beam of immense Light energy to attack that Pyramid. The beam made contact with Nezarec's body, and the Traveler's innate terraforming power caused Nezarec to be resurrected, only now with both Light and Dark energy at his disposal. The boss fight against him in the Raid involves turning the combined forces against him to break his defenses.
      • The Exotic weapon for "Root of Nightmares", Conditional Finality, is an example of this. It's a two-shot shotgun that uses both Stasis and Solar, which are considered opposing powers. The first shot is a Stasis shot that freezes an enemy and the second shot is a Solar shot that Ignites them.
  • Devil May Cry:
    • Devil May Cry 2 takes place on the island of Vie de Marli. In the Japanese release, the island is referred to as Sei to ma no tokeau shima ("The island where Holy and Evil merge"). This trope could apply to the Protectors clan that Lucia is part of; the North American manual states that the Protectors could draw on power from their gods to vanquish evil and Lucia states that the clan have "inherited the blood of devils".
    • Dante, with Ebony and Ivory. He uses both demonic and human weapons. In Devil May Cry 3: Dante's Awakening, Vergil hates humans, and exclusively uses demonic weapons, and Lady hates demons, and uses ordinary human guns. Dante's usage of both types of weapons proves to be more powerful.
    • Nero, introduced in Devil May Cry 4, follows a dynamic similar to Dante's above. He uses the sword Red Queen, a human-made anti-demon weapon, alongside Vergil's sword, the Yamato, a weapon of demonic origin.
    • The trope is played straighter in DmC: Devil May Cry, where Dante and Vergil are now half-demon/half-angels, and can use both angelic and demonic weaponry.
  • In the Diablo series, the reason that Humans Are Special is that they are the offspring of forbidden relationships between angels and demons, and as a result display a blend of traits which cannot be found in either of their parent races. While demons and angels are both compelled to follow particular behaviours, humans have free will and the ability to choose between good and evil, and the most powerful humans are able to Screw Destiny.
  • In Dragon Age: Origins, you run across quite a few Darkspawn Emissaries and Blood Mages with skill in healing in addition to their darker powers, which makes them much more obnoxious to fight since they've got the Creation-school healing to let them keep throwing out the Entropy-school hexes for longer. This is partly due to Gameplay and Story Segregation; in theory they aren't using the player schools at all, but Blight magic with similar effects.
  • DragonFable has the Death Knight class, which requires the player to have mastered both the Paladin and Necromancer classes. The class is empowered by relic items that require both the light-infused armor of paladins and darkness-infused bones of necromancers to upgrade into higher levels. The swords associated with the class are also able to switch between Light and Darkness element damage, while the defensive relics resist them alongside Good and Evil element damage.
    • Also exemplified with Sinnocence, a member of an antagonistic group called the Maleurous who has been horrifically fused and possessed by Doom and Destiny weapons, the Infinity +1 Sword weapons of the Light and Darkness elements in the game. His attacks involve alternating between slashing with an arm fused to a Necrotic Blade of Doom, and an arm fused with a Blinding Light of Destiny The build-up to his fight had him leading an army of both Light and Darkness elementals.
    • The last of the Maleurous, Notha Ly'Ehr; a researcher of an ancient group called the Exalted, who were composed of Celestials and Infernals, also demonstrates this to some extent. Rather than Light and Darkness, Notha makes use of the Good and Evil elements in her attacks, before fusing them into attacks consisting of the Fear element, which is both this trope and a representation of Mana.
  • In Epic Battle Fantasy 5, many holy-type attacks leave the target with the weaken status effect, which debuffs offensive stats over time. Dark-type attacks, on the other hand, inflict the curse status effect, which debuffs defensive stats over time. However, weaken also increases the dark damage you take, and curse increases the holy damage you take. Because of this, spamming attacks of both elements can not only inflict debuffs across the board, but also maximize damage, as long as your enemy isn't aligned with either dark or holy (if they are then they'll absorb half the damage you deal).
  • In Fell Seal: Arbiter's Mark, Kyrie’s unique Marked class learns an equal number of dark- and holy-elemental attacks and spells.
  • Final Fantasy:
    • Final Fantasy IV. The main prophecy speaks of "light and darkness cast aloft". Cecil is pure light at the end of the game, but it does take both him and his brother Golbez, still in the dark side, to deal with the Big Bad in the end.
    • Palom and Porom's Twincast works off this concept, as do a couple of Bands in the sequel, Final Fantasy IV: The After Years: Rosa and Rydia's "Holy Burst", Cecil and Golbez's "Ultima Spark", and Palom, Porom, Rosa, Leonora, and Rydia's "Infinity".
    • In Dissidia Final Fantasy, Cecil becomes one, freely switching between Paladin and Dark Knight as he fights.
      Cecil: (during his EX Burst) Light and darkness cast aloft!
    And it gets lampshaded.
    Jecht: Light, Dark, just make up your mind!
    • Before this, Final Fantasy III had the Light Warriors unable to defeat the Big Bad without invoking the power of the Dark Warriors, who had previously combatted the unnatural growth of Light (The world now being in an unnatural state of Dark.)
    • The DS version of the game replaced the Mystic Knight class with the functionally identical Dark Knight class. Allowing a Light Warrior to fight with Dark power.
    • An interesting Superboss example comes into play in Final Fantasy XII, with the Hell Wyrm boss. Despite it being called the King of Hell in the bestiary, it's strongest attack is Holy elemental. This is also considering this boss has access to darker abilities, such as Darkga.
    • Final Fantasy XIV
      • The Red Mage job functions a bit like this. In the XIV universe Red magic is achieved by using the body's own natural aether amplified by their crystal focuses to cast both white and black magics and storing the resulting aether within. When in balance the two combine to form red magic, which is delivered by melee attacks and amplified by their swords. The result is that the Red Mage does not have to drain aether from the land to cast.
      • Black Mages cycle between Astral Fire, in which they burn their MP on powerful Fire spells, and Umbral Ice, triggered by Blizzard spells, in which their MP regenerates rapidly. At level 90 they gain access to the spell Paradox after swapping from the maximum level of one state to the other, which blasts the target with fire and ice simultaneously.
      • The player character is able to tap into this generally speaking, using jobs that heavily use light magic (eg. White Mage or Paladin) and dark magic (eg. Black Mage or Dark Knight). Symbolically they achieve this during the Shadowbringers expansion: having been become famed as the Warrior of Light in their efforts to fight back against the darkness brought by the Ascians, they journey to a parallel world which is about to be consumed by forces of light that have been unleashed by Ascians; thus they take up the new mantle of the Warrior of Darkness in order to restore darkness, bring back the night and return balance to the world. It's not uncommon, post-Shadowbringers, for players to refer to their character as the Warrior of Light and Darkness.
    • Final Fantasy Brave Exvius is one of the few games that inverts it. Sakura, who joins halfway through the game's first season, has both light-element and dark-element attack abilities. She does also have one ability that combines both elements — but in her case, she combines them to create a defensive shield that halves damage from both sources (it also halves electric damage, but that's because Sakura is a specialist in lightning-element skills and spells).
  • In Find Mii 2/Streetpass Quest 2, you can have Miis of the same or similar color shirts team up, like a team of Blue-Blue miis or a team of Blue-Light Blue miis, though miis with the same color shirt are a better team. The exception is a mii wearing a white or black shirt, they can team up with other miis of the same color shirt like White-White or Black-Black, or team up with each other despite wearing opposite colors to form a Black-White team. While they don't have a Combo Magic command like they would if the team had the same color shirts, their Combo Attack command is the only thing that can break Shadowlight shields, whereas most other shields only require a single mii wearing the required shirt.
  • Golden Sun: In the second and third games, one of the optional summons is Ulysses (who's a mage for some reason) who sends magical flying jaws at enemies and requires two Mars and two Mercury Djinn. Other summons that require different amounts of opposing elements are Flora (earth and wind, attacking with petals) and Iris (fire and water to send enemies into the Sun).
  • Granblue Fantasy:
    • Notably Vira and Amira, who can both acquire the ability to wield light and darkness at once (Amira through her half-demon half-angel heritage, Vira with her natural dark attribute and her ability to channel the power of the primal beast Luminiera).
    • Oxymoron, a major boss, is probably the most shining example, with its name, half-and-half color scheme, and concept (being two opposite forces sealed together) but is fire/water instead.
    • Twin Elements (known as Flame=Glass in Japanese) is the fusion born from a pair of draconic beings wielding Fire and Water, and is capable of delivering this through its Signature Move, Frigid Blaze.
  • Grandia II. Good and evil were necessary to win the game, as you had a holy priestess with you and an evil demon, both in the same person, and you, being the hero, were kind of the neutral mix of both. May also apply to the Big Bad who is both the pope of the same holy religion as the priestess, and embodies the same devil entity as the demon chick — cranked up to 11, obviously.
  • With Hearthstone being based on Warcraft, it is only fitting that the Priest class in that game continues that tradition, having both Light and Shadow-based spells in its arsenal.
  • Heroes of Might and Magic:
    • An unintentional example is used to explain the change of setting between the third and fourth games. Gelu wields a Flaming Sword, the Armageddon's Blade, in battle against Kilgor, who wields his own magical weapon, the Sword of Frost. When the two swords strike one another, they unleash a destructive magical shockwave that almost destroys the planet.
    • In IV, Nature magic focuses on summoning animals and magical beings and buffing allies, while Death magic focuses on cursing enemies and resurrecting slain creatures as undead. Using both in combination allows the summoning of demons. The protagonist of IV's Death campaign, Gauldoth, is able to do this.
    • In IV's expansion The Gathering Storm, one of the protagonists uses order and chaos magic together, and his campaign involves seeking a Yin-Yang-related artifact that will power both. Another protagonist is able to use a combination of White Magic and necromancy.
  • Ikaruga is made of this trope. Enemies fire light-aligned and dark-aligned bullets at you, but your ship can switch between the two polarities at will, absorbing bullets of the same color, and causing double damage when firing bullets of the opposite color.
  • In Illusion of Gaia, Dark Knight Will fuses with Light Knight Kara to destroy the Comet of Doom.
  • Jade Cocoon operates on strict Elemental Rock-Paper-Scissors, with "wind eroding earth, earth absorbing water, water extinguishing fire, and fire devouring wind" and there are no natural minions who use multiple elements. You on the other hand are free to merge multiple, conflicting, and even all elements with impunity, whether balanced or imbalanced, to create Red Mage type minions with access to multiple elemental attacks and confusing damage calculations based not only on the elements they wield but also based on how much they lean toward said elements.
  • Jak from Jak and Daxter gains both Dark Eco and Light Eco powers over the course of the story. Though not referring to him directly, he is even told that "the two types, light and dark, when combined form great energies."
  • Kingdom Hearts:
    • Riku's ending in Kingdom Hearts: Chain of Memories and throughout 358/2 Days and Kingdom Hearts II. The ending of the latter may have broken this, though; the fans still argue about it. Dream Drop Distance just complicates this even more; he retains a lot of his Dark powers, yet explicitly favors the Light (making the fans argue if it's even this or an outright subversion via "Dark Is Evil subdued by Light Is Good").
    • During the last hit of the Eternal Session Combination Attack, Sora and Riku charge their Keyblades with Light and Darkness, respectively, and crash them into each other for a superpowerful attack combining the two elements. Some of Riku's sleights in Re:Chain of Memories work the same way, just with Mickey channeling the light power instead of Sora.
    • Xemnas uses a yin-yang bomb style of attacking in the final battle, throwing out beams of darkness and light. Xemnas even trades out his trademark black robe for a robe of black and white swirls.
    • Roxas' element is Light, but as a Nobody he's technically a being of nothingness (though he still came into existence because of darkness's effects on his original self, as do all Nobodies). It's his two Keyblades that are a representation of the trope, the light-aligned Oathkeeper and dark-aligned Oblivion. Sora's Final Form also somewhat qualifies — it symbolizes him manifesting Roxas' power, and his mostly black outfit takes on elements of Roxas' silver and white clothes, resulting in an outfit covered in white and black swirls. Artwork for Final Form also shows it with the Oathkeeper and Oblivion like Roxas.
    • The Oathkeeper and the Oblivion are obvious if you know Japanese. The Oathkeeper's teeth are the kanji for "light", while the Oblivion's teeth are the kanji for "darkness". Also related is that both of Sora's best friends are each symbolized by these Keyblades; Kairi is light and is represented by the Oathkeeper (the keyblade has her lucky charm as a keychain and is obtained after he got a clue of where she was in KHII) and Riku is darkness and is represented by the Oblivion (he has used the keyblade himself, and in both KH and KHII, it is obtained after an encounter with him). This is supported by the fact that Riku uses the power of darkness to fight and Kairi is a Princess of Light.
    • In the Final Mix version of Kingdom Hearts II, Sora gets the Two Become One keyblade after defeating Roxas. The Keyblade itself is covered in silver, white, and black sections, symbolizing a combination of Sora's light and darkness (and his combining with Roxas). Its special effect is called "Light and Darkness", which causes him to, when he Drives, become either Final Form, as described above, or Anti Form, a shadowy Heartless-like Sora, no matter which (usually low-cost) Drive form you actually chose. In this case, Final Form represents light, and Anti Form represents Darkness.
    • In Birth By Sleep, Master Xehanort preaches the virtues of this path to Terra, telling him that Eraqus's way of shutting out and killing the darkness is just as wrong as succumbing to darkness entirely, and that the right way to protect the worlds is to wield light and darkness in equal measure... though his actions afterward seem to prove otherwise. Given his stated beliefs in III however, he was always still pursuing this goal, but his obsession with Darkness caused him to take a warped way of viewing both forces, to say nothing of his actions in addressing them.
    • Also in Birth By Sleep, the χ-Blade is a Yin-Yang Sword, forged by combining a heart of pure darkness with a heart of pure light.
    • The Shadow Breaker command in Kingdom Hearts 3D [Dream Drop Distance] consists of two whirling slashes, the first dark element, and the second light. Both Sora and Riku can use it.
    • In Kingdom Hearts III, the Oathkeeper and Oblivion (introduced in an update) have the unique Formchanges of Light Form and Dark Form, respectively. From either Formchange, Sora can then enter Double Form, which visually incorporates elements of both prior forms and utilizes all kinds of light-and-darkness combo attacks, Dual Wielding Oathkeeper and Oblivion in a similar manner to Roxas.
  • Averted in Kirby 64: The Crystal Shards. The game's central twist on the series' staple Copy mechanic is that different base abilities can be combined into more powerful and elaborate abilities. For example, combine Fire and Cutter abilities to wield a fiery sword, or combine Needle and Ice abilities to attack with giant, jagged snowflakes. Combining the Fire and Ice abilities results in possibly the most useless ability in the game; Kirby freezes in a block of ice, then catches fire, melting the ice. It will hurt enemies if they happen to bump into Kirby while he's immobilized by the ability, but essentially any other copy ability would be a better choice in virtually any situation
  • Wisp of Knights in the Nightmare has the power to switch the "Battle Phase" between Law and Chaos at will, which causes its Knights to execute different attack patterns. Also, the amount of Power Crystal (required to Break Out) dropped by enemies depletes over time, but returns to full when the Phase changes, forcing Wisp to switch between the Phases in order to keep up the assault.
  • Knights of the Old Republic:
    • Jolee Bindo is a Grey Jedi, and uses Light and Dark powers interchangeably.
    • An even better example is Kyle frickin' Katarn, who can very well be considered a Gray Jedi. One of the first things he taught to his pupils was that the powers they use are neither good nor evil, it's how they use them that is important. The one apprentice who took that lesson to heart has beaten an ancient Sith Lord in single combat.

      Lucas implies that fueling your Force powers with emotions (i.e. giving into the Dark Side) amplifies said emotions, making you give into them a bit more every time instead of just using them as a power source. That's what makes the Dark Side so dangerous — you will go mad with power, and the more confident you are in your 'control' over them, the faster this happens. As for "Light" and "Dark" Force powers, they're more a staple of philosophy (protect vs. attack) that's more likely to employ them (and thus rely more on the Light or Dark) than specifically a tool of either Side. It just happens that lashing out with emotion makes for a stronger attack, hence the association.
    • You can use the Player Character as one in Knights of the Old Republic, though it is rather difficult to throw around light-side buffs and neutral or dark-side attack powers unless you are a Consular with maxed Wisdom and so many force points it isn't even funny. In an aversion of this trope, though, trying to rely on both makes you weaker than focusing on either, because of Side penalties, as well as powerful Side-specific items. Without them, it would be played straight. The canon version of the character takes it to the extreme of being both a light side master and a dark side master instead of grey, which shouldn't even be possible.
  • League of Legends has Senna, the Redeemer, who wields a mixture of light powers thanks to an enormous magical railgun and the dark, soul-infested Black Mist due to a curse that attracts its attention but allows her to manipulate and "liberate" it. Gameplay-wise, she's an unusual Combat Medic who tends to use darkness offensively, and light defensively, and both through shots of her gun; her Limit Break, "Dawning Shadow", fires an enormous blast of global range that shields her teammates while damaging enemies in the very center.
  • In Legaia II: Duel Saga, the White Mage turns out to be a powerful sorceress, and the first special technique she masters is "Big Bang," which combines Earth, Wind, Water, and Fire, two sets of diametrically opposed elements, to create a powerful Light-elemental explosion. Her attack-line is actually "Power to Create! Power to Destroy!"
  • The Legend of Zelda:
    • The Gerudo in The Legend of Zelda: Ocarina of Time. The Spirit Temple is about the interplay of light and shadow; the witches who rule it, Koume and Kotake, use fire and ice. They even have a combined form called Twinrova.
    • Ganondorf acquired more of a note of pairings-of-opposites as the series went on. In the first three games, he was mostly just demonic; but in Ocarina of Time he uses a lot of lightning magic, and in Twilight Princess he wields a corrupted holy sword.
  • Magicka: Any element has one or two elements which oppose it. Trying to invoke opposites in one spell by yourself is impossible as they'll simply nullify each other. Instead, if two different mages cross beams which contain elemental opposites (the most basic example is pure Life against pure Arcane, which are the elements responsible for shaping spells into beams unless overridden by higher priority elements, or for a different example Arcane+Lightning colliding with Arcane+Water) then at the point of intersection a devastating blast of energies will promptly occur, while the feedback forces mages responsible to stop channeling their beams. Just the kinetic energy from that explosion will likely smear anyone caught in its radius across walls. Magicka 2 changes this mechanic: the explosion doesn't occur instantly, but first has a small black orb Sucking-In Lines for a short while, then releases an even more impressively looking blast, complete with a border of Instant Runes and some variations depending on elements used, such as ice, lightning or steam.
  • Mana Khemia 2: Fall of Alchemy has this as the ultimate Combination Attack of the two leads, Raze and Ulrika (who were granted powers by the Light and Dark Mana, respectively).
  • MARDEK: Chapter 3 has Zach's strongest attack, "Immoral Injustice," which deals large amounts of damage to both light and dark elemental foes. The animation looks like a yin-yang. His strongest weapon is a double-bladed sword called "Yin and Yang."
  • Metroid Prime 2: Echoes:
    • The game introduced the Light Beam, a concentrated form of "the Light Of Aether" that makes life possible on the rogue body and the Dark Beam, a concentrated form of Dark Aether's toxic, hostile atmosphere. The Luminoth then learned these two things were ideal for containing a matter-antimatter reaction and thus created the Annihilator Beam, which is the energy produced by said reactions, and outfitted onto a war machine known as Quadraxis. Samus obtains this particular weapon once she destroys the turned-rogue war machine. The light and darkness aspects of the Annihilator Beam are just as important, as shooting a Luminoth Light Beacon projects a field that both compels Ing to approach it and obliterates them on contact.
    • The Emperor Ing noticeably not only doesn't take extra damage from the Light Beam (compare to other Ing for which its incredibly toxic), but it can even fire light-based attacks alongside the usual darkness-based ones used by Ing. This is likely due to how the Emperor Ing devoured the last of the "Light of Aether" for a final power-up against Samus and did it without using an energy transfer module that other Ing need to use to protect themselves, which only shows off the creature's Super-Toughness.
  • Mobile Legends: Bang Bang:
    • The first Yin-Yang Bomb-wielding hero introduced in the game is Kagura, whose Limit Break, Yin Yang Overturn, involves invoking the power of her umbrella to either pull in or blast away enemies within its range.
    • The second is Lunox, who can wield the powers of Order and Chaos. She uses them together with her third skill, Cosmic Fission, dealing damage to enemies along the way and slowing them down.
    • The latest is Luo Yi, who uses Yin and Yang energies. Through her passive skill, Duality, she can apply Yin and Yang marks on enemies or on the field — entities with opposite marks, when close enough, will be pulled together like magnets and will be stunned for a moment.
  • In Mortal Kombat X, one of the new character variations for Liu Kang is the Dualist Style: with this, he can switch some of his techniques into being either Light-Aligned (which heal Liu Kang when they connect) or Dark-Aligned (which are tricky to use but can cause a lot of damage). Fittingly, the emblem for this style is a Yin Yang.
  • Oracle of Tao (and the book version) has Ambrosia, a user of trigram-based tattooes. After she gets all eight powers, her final is the Tao ability. This gives her two main abilities, the ability to split her body into two parts, and a blast of nonelemental energy that basically responds to her mood. In the game, this means that her powers can either hurt her as a result of use, or deal massive extra damage (or simply halt the battle). The book is different mainly because the last one is missing, and it spends more time getting into more depth about this.
  • The XBLA Bullet Hell-infused Platform Game Outland is based around this.
  • Most main characters in the Persona (and Shin Megami Tensei) series can wield both Light and Dark magic. Curiously, they are both insta-kill magics instead of healing (which most often shows up on Wind or Water Personas).
    • Shin Megami Tensei: Devil Children: Book of Light and Book of Dark (DemiKids in the states) was all about this. The game was One Game for the Price of Two, one "dark" version and one "light" version, which followed one story from two viewpoints, Jin and Akira, also light and dark, respectively. The final boss was in two parts, also one light and one dark. Akira fought the light half, Jin fought the dark half, and the storyline had it so that both were fighting at the same time.
    • Furthersome, Naoto from Persona 4 was practically a pure incarnation of this. Specially considering how in the Persona series it's hard to hold both Light and Dark attacks simultaneously.
    • The strongest personification of this trope in the Persona series is Armageddon, the strongest attack in the games, doing 9999 non-type unavoidable damage to everything or an automatic victory. It is made by combining the opposing aspects of Satan and Lucifer.
    • In the MMO Shin Megami Tensei IMAGINE, they are no longer light and dark, but Death and Expel. In an odd variation, player characters cannot use death or expel themselves. The closest, however, is that they can use both white magic (healing/buffing skills) and dark magic (damage based/debuffing skills) in unison, and each one is a separate class, so you could have a person who can both debuff and buff, or in closer symbols for light and dark, revive all party members at full health and then blow up the enemies with a blast of destructive energy (or combinations thereof). Any character who masters two skills that correspond with each other could be considered a non-alignment yin-yang bomb, if you master counter/dodge and a melee based skill you have the distinct possibility of becoming unhittable in one-on-one combat, however only in one-on-one.
    • While the sides of order and chaos, represented respectively by angels and fallen angels, are generally opposed in most games in the series, the plot in Shin Megami Tensei IV: Apocalypse reveals that they are two halves of the forces of YHVH, who deliberately goaded half into rebelling so that they would fight against each other in a forever war. In the end, the leaders of both sides, realizing they were being played, fused together to restore their original form to aid the main characters in the last fight against God.
    • Hallelujah in Shin Megami Tensei IV: Apocalypse is a powerful magic user who wields both fire and ice magic.
  • Pocket Tanks can be expanded to include many weapons beyond the base 20 that come with the free version of the game. One of the further weapons is called "Fire + Ice", which combines the two base weapons Hail Storm & Napalm and is even represented by a red & blue yin-yang symbol.
  • Wes from Pokémon Colosseum, with his Espeon and Umbreon.
  • In the Shadow Hearts series, both Will, magic that governs the soul, and Malice, magic that governs the body and primal instincts, are required to perform a successful resurrection with the Emigre Manuscript's rituals. Most of the resurrections attempted in the series failed because the users used too much or not enough of one or the other.
  • Shining Force:
    • You need to get the Sword of Light and the Sword of Darkness to use as keys to get the Chaos Breaker, a plot-important Infinity +1 Sword.
    • If you explore during Michaela's battle, you'll find the White Ring, Black Ring, and Evil Ring. Though it may not sound like it, the Black Ring is the Yin-Yang Bomb. It's cursed just like the Evil Ring, but it's the only ring that can only be equipped to the hero, and in battle it perfectly complements the White Ring. The Evil Ring is only a Disc-One Nuke.
    • Shining Tears has a system where you pair off in battle with a Light- or Dark- aspected partner, and your alignment is shifted to the opposite thanks to your Yin/Yang rings.
  • From Silhouette Mirage, Shyna is a textbook example. Her body is actually split down the middle, Mirage on one side and Silhouette on the other. Zohar, another Protean, does it somewhat differently, with alternate Silhouette and Mirage appearances, which also happen to be different genders.
  • A variation of this is one of six elements in Skies of Arcadia: the powers that are bestowed by the Silver Moon are that of life and death. Silver spells either revive fallen comrades or cause instant death. This also applies to the Silvites, the old peoples who once lived during the Old World under the Silver Moon: instead of having just one crystal, all of them hold a fragment of the Silver Moon Crystal in their bodies, and removing them, as Ramirez tries to demonstrate on Fina in-game, kills the host.
  • The Chaos Emeralds's energies in the Sonic the Hedgehog games can become either positive or negative depending on the emotions used to draw them out. Sonic Adventure culminates in the epic clash between Perfect Chaos (empowered by negative energy) and Super Sonic (empowered by positive energy).
  • Soulcalibur:
    • One of the weapons for a character was the "good" sword corrupted by the "evil" sword, while the other time, an immortal man brings the two swords together. Bad things happen as a result.
    • And in Soul Calibur IV, Talim's final weapons (she uses a pair of "elbow blades") are Soul Edge and Soul Calibur: one in each hand. Kilik's ultimate weapon is Embrace of Souls, a fusion of Soul Calibur and Soul Edge that leaves both swords inert (though still powerful), in staff form.
  • Star Shift Origins: The First Ones were accidentally created from the conflict between the light and darkness, resulting in them having power over both.
  • StarCraft:
    • The Xel'naga temple in StarCraft: Brood War requires both the Uraj crystal, powered by High Templar energies, and the Khalis crystal, infused with Dark Templar power, in order to activate and blow everything within a wide radius straight to Hell on the armageddon express.
    • This wasn't the first time, either. Tassadar channeled High and Dark Templar powers simultaneously to kill the Overmind. This is also very significant, as the last guy to combine both High Templar and Dark Templar energies was Adun (he used it to distract the Conclave and allow the Dark Ones to escape). As in "En Taro Adun." There's a reason they now say "En Taro Tassadar" and Tassadar is now called the Twilight Deliverer.
    • The Twilight Archon in StarCraft II was planned to be this, a combination of a Dark Templar with a High (Light) Templar. Then the unit was replaced by the normal Archon, the only difference is that now it forms as a combination of any two Templar units regardless of their alignment. So it can be a yin-yang bomb, but doesn't have to be. The concept of the Twilight Archon being this trope was later adapted to the lore behind the Void Ray, which uses both forms of energy to power its Wave-Motion Gun.
    • In Legacy of the Void, Artanis would wield both a psy-blade and warp blade in battle, though he only got the latter after Zeratul died.
  • In Star Wars: The Force Unleashed, Starkiller seems to combine Light Side and Dark Side techniques in battle.
  • In Super Robot Wars K, El Dora V gains a finishing move which is a visual shoutout to GaoGaiGar's Hell and Heaven. Its name? "El Inferno y Cielo". Regrettably, El Dora Soul does not retain it.
  • Super Robot Wars X: Zelgard's final attack involves both protagonists who are together casting their dogma to create this effect.
  • Sword of Paladin: The Flotsam jewel requires an Orichalcum to be infused with equally powerful light and dark magic. In the true ending, Nade and Zechs have to duel each other in order to generate the light and dark power needed for the Flotsam.
  • Tales Series:
    • In Tales of Phantasia, Cless must find the fire-aligned Flamberge and the Vorpal iceblade, and forge them together into the Eternal Sword.
    • The ending of Tales of Eternia, in which Reid and Meredy combine Seyfert's Light Aurora with Nereid's Dark Aurora to Save Both Worlds.
    • Judas in Tales of Destiny 2 wields a dark dagger and a light dagger. He also is proficient at both light and dark-type spells, which really doesn't make too much sense, as his elemental affinity is technically Earth. He can also wield wind spells as the yin yang to his earth proficiency.
      • In the same game, Harold has two elemental yin yang bombs in the form of Fire and Water and Light and Darkness.
    • Shing (light) and Kunzite (dark) in Tales of Hearts have a Combination Attack called Senanreppajin — in kanji, "Flash Dark Tearing Break Sword". It's activated by synchronizing two of the best multihit elemental sword moves they have.
    • In the PS3 version of Tales of Vesperia, Yuri and Flynn's combination mystic arte, Bushin Soutenha, has them team up and fire a beam of intertwined darkness and light at their victims.
    • Richard from Tales of Graces utilizes light and dark magic as his primary elements.
    • Elise from Tales of Xillia combines dark based offensive magic with light based healing. She and Milla can use the aptly named Chaotic Fusion link attack, which forms a sphere of light and darkness around the victim that eventually explodes.
    • In Tales of Berseria, Laphicet's second Mystic Arte, Chaos Bloom, has him combine light and darkness to create a shockwave that damages all enemies on the battlefield.
    • Tales Of The Rays has Mileena starting off with light elemental artes before giving her darkness elemental artes and Mirrage Artes.
  • Tekken8:
    • Jin Kazama himself becomes this, the combined power of the Devil Gene from the Hachijo bloodline and the purification powers from his Kazama bloodline intertwine, giving him a single black wing and a single white wing as he utilizes his usual devil lasers alongside blades of light. Eventually the power of purification takes over completely, turning him into Angel Jin and culminating in a Yin-Yang Clash between him and his father, who embodies darkness as True Devil Kazuya.
  • Terraria:
    • You can explore the blighted, dark lands of the Corruption (or the Eldritch-style flesh covered lands of the Crimson) and the joyful, light-aligned Hallow and find respectively Dark and Light Souls, which are used to make or upgrade dark or light-themed equipment. Fuse them with two particular (and rather rare) items and you obtain the Dao of Pow, an Epic Flail which is essentially a huge spiked Yin-Yang on a chain capable of massive damage and confusing any enemy it touches.
    • As of Terraria 1.2, Combining the True Night's Edge and the True Excalibur at a Demon Altar will cause the power of The Corruption/Crimson and the The Hallow to cancel out and produce the Terra Blade.
  • Touhou Project:
    • Reimu's Yin-Yang Orbs are likely the most literal example of this trope one will find.
    • Yukari's power over boundaries seems to be all about this. "Mesh of Light and Darkness", "Curse of Dreams and Reality", "Balance of Motion and Stillness", etc, etc. So basically her power is a myriad of different Yin-Yang Bombs.
  • In Trials of Mana, you get two class changes per character. Each time you class change, you can pick either the Light or the Dark advance from your current class, leading to Light-Light, Light-Dark, Dark-Light, or Dark-Dark.
  • Universe at War:
    • Where the Hierarchy have Humongous Mecha Base on Legs and the Novus have lightning fast mobility with the use of flow networks, the Masari has this as their gimmick. They can actively switch between Light and Dark at any time, albeit with a small cooldown upon switching. Light is geared for offence while Dark is geared towards defence. Managing between the two modes is key in winning battles when playing as them. A good strategy is to use Dark mode when base building and scouting, then switch to Light mode when attacking enemy bases or defending against Hierarchy Walkers.
    • This is played much more straight with the Balance branch, which utilizes both Light and Dark to create a very stealthy army. Special mention goes to the hero unit unlocked from this branch, Prince Zessus, a Half-Human Hybrid who can balance, combine and control the powers of Light and Dark to create immense energy no other Masari can ever harness without even losing control. He's able to do this by balancing the nobility of a Masari (inherited from his mother, Queen Altea) and the hot-bloodedness of a human (inherited from his father, a human). He does struggle to balance between the two at times however. As much as he is an overall nice guy and a noble person, he is pretty brash and tends to be a Leeroy Jenkins due to sheer hot-bloodedness.
  • Warframe: One of Gauss' abilities, Thermal Sunder, can be used to either absorb thermal energy from the environment, charging his battery while doing Cold damage to enemies in the area, or release the thermal energy, draining his battery and doing Heat damage. If an enemy is already afflicted by a Heat or Cold status effect, being hit by the opposite element of Thermal Sunder will cause an explosion that deals high damage, removes their armor, and either blows them away or pulls them towards you (depending on the order in which the effects were applied).
  • Taigong Wang from Warriors Orochi produce Yin-Yang marks after using his C2, C3, or C5 attacks. Activating his special attacks will make them explode.
  • World of Warcraft:
    • Balance-specced druids switch back and forth between solar- and lunar-based spells as one of their main mechanics. Their signature move, Starsurge, is a powerful blast formed by fusing the power of the moon and sun.
    • Priests have holy spells to heal and buff allies or smite enemies (powers that come from the Light, but also rather evil-sounding shadow spells that can inflict extreme pain on enemies or liquefy their very mind; these Shadow powers come from an Old God. They can switch between Shadow and Holy magic at will, but only Discipline priests use both at the same time; in the 2016 expansion, Legion, they abandon their former specialty of being a Barrier Warrior to focus on this combination.
  • In Wynncraft, The Corruption is described as a fusion of light and dark magic, which is produced in abundance via the war between the light and dark realms.

    Web Animation 
  • Dreamscape: Keedran can use evil magic in her monstrous form, and holy magic in her true form.
  • The newest member of hololive at the time of writing, IRyS, is naturally a case of this due to being a half-demon Nephilim like the DmC: Devil May Cry versions of Dante and Vergil above, and is incredibly powerful, being able to wield both light and darkness with enough power behind both to blanket an entire city in either at a whim. The example with her actual powers is somewhat downplayed though, as she hasn't been shown combining her powers... yet.
  • In Mario Brothers, according to the creator the lava unnaturally erupting from Koopa's castle was the devastating result of Koopa's dark magic and Toadstool's own magic mixing when they both fell into the lava.
  • In the Sonic the Hedgehog fan flash movie Nazo Unleashed this trope is invoked against the eponymous Nazo in his Perfect form. After both Super Sonic and Dark Super Shadow get soundly curbstomped one after the other, Sonic (light) and Shadow (...well, shadow) use Chaos Control to merge into Hyper Shadic, who proves strong enough to challenge the "darkness" that is Nazo.
  • RWBY: Salem is a being who combines the powers of Creation and Destruction to achieve the threat level she now poses to the entire world. Cursed with infinite life by the Pool of Life, Salem tries to drown herself in the Pools of Annihilation. However, waters of infinite destruction cannot destroy a being of infinite life. Instead of dying, she emerges as an unkillable force of pure destruction. Wielding magic from her mortal life and now able to control the Grimm, she is unstoppable by both mortal and magical means.

  • 180 Angel: In Episode 97, Sam creates and wields two swords during her fight with Paymon; one of light from her halo, and another of darkness from her scythe.
  • Champions of Far'aus: In the climactic battle of the story arc "The First One", Leilusa, a goddess of shadow, and Hyperion, a god of light, have Flamel use rune magic they set up to fire a combination shadow/light attack at the cultist who has merged themselves with several durable/dangerous spirits. While the two magics swirl around each other while moving, the result upon impact is an explosion.
  • At the end of the Dominic Deegan arc "Storm of Souls", Dominic has to fight Celesto Morgan, the Champion of Chaos and Darkness. Celesto assumes that Dominic is the appropriate counter for him — the Champion of Law and Light. But no, he is the Champion of Balance, imbued equally by Light (thanks to his brother, Gregory, a powerful White Mage), Law (through Klo Tark, a master of mind-magic), and Dark (through the Anti-Hero Necromancer, Rillian). When Celesto strikes him with an attack concentrating the pure Chaos of the Storm of Souls, Dominic absorbs it. However, it's soon revealed he needs to take it a step further by gaining the physical elements — which Leafette's Heroic Sacrifice provides him.
  • Homestuck has the Tumor, a literal Yin-Yang bomb with an explosion encompassing about the combined mass of two universes.
  • Pella in Looking for Group gives Cale a gift of two swords, named Good and Evil. Cale represents the balance between them. Also significant is that the swords were forged from the remains of the sword of Truth (no, not that Sword of Truth).
  • Sinfest depicts the Buddha as a cheerful Cloudcuckoolander that confounds God and the Devil alike.
  • In Slightly Damned, fire demon Buwaro and water angel Kieri did this by accident. Kieri was showing Buwaro a spell for making bubbles and when Buwaro tried blowing a bubble with her, he used his fire breath, with resulted in them making a bubble with a flame inside it, which hit Tsavo and exploded.
  • Tower of God: FUG's signature move, the Hwa Jeop Gong Pa Sul, is based on using to opposing forces of Shinsu at once to create a devastating attack.


    Western Animation 
  • Avatar: The Last Airbender:
    • Avatar: The Last Airbender explains this is how lightning generation in Firebending is done. Iroh says that one must separate the Yin and Yang on one's body, and when they come back together they create an explosion of energy that can be redirected as lightning to the cool and focused mind. When Zuko tries this, he promptly finds that his own rage and passion backfire on him. Literally.
    • Averted in the Sequel Series The Legend of Korra. Raava and Vaatu are shown as spirits of light/peace and darkness/chaos respectively. They strongly invoke yin-yang symbolism (to the point of turning into the symbols briefly), but they are in eternal conflict over which one dominates, making them mutually exclusive. The series ends with Raava victorious over Vaatu, but as Raava herself said, light and darkness cannot exist without each other — even with Vaatu defeated, he'll just grow inside Raava and reemerge thousands of years later (and if he'd won, Raava would reemerge the same way). The problem with Vaatu winning is that humanity wouldn't be around afterward...
  • Equinox's schtick in Batman: The Brave and the Bold, going as far as wearing a Yin-Yang symbol on his chest. His costume was half black and half white, and he tried to maintain the balance between Chaos and Order (naturally going insane in the process).
  • In DC Super Hero Girls (2019), we learn that Zatanna inherited both light magic from her father, and dark magic from her mother, which is why her magic gets so unstable when she gets emotional.
  • Deconstructed in He-Man and the Masters of the Universe (2021). Season 2 reveals that someone can have both the Power of Grayskull and the Power of Havoc inside them. But because the powers are opposing forces, the power given is weaker than if you held one or the other. Because the crystal in her helmet is made of Proto-Havoc, Ram Ma'am's connection to Grayskull was always weak compared to her fellow Masters of the Universe. It's both why she never unlocked her Master Strike and why she doesn't have a Nemesis; having both powers makes Krass her own Nemesis.
  • Hot Wheels: Battle Force 5: The Double-Helix Crystals, an artifact created by Sage, are this. She created the Crystals by placing two incompatible elements — a red anti-matter crystal and a blue Hadron crystal — in orbit around each other. She used the Crystals to freeze the Red Sentients before sealing them away. In the Season 2 episode "The Crimson One", the Red Sentient Force seek the Crystals to undo the process, and the Battle Force 5 have to destroy the Crystals. Vert and Stanford manage to do so by fusing their vehicles while carrying the Crystals, causing the Crystals to be fused as well. Being incompatible, they become a literal Yin-Yang Bomb that Vert and Stanford use to defeat Krytus.
  • In Miraculous Ladybug, we have the Ladybug and Black Cat Miraculouses, which grant their wielders the powers of creation and destruction, respectively. When one wields them together, they give the power to warp reality, though this apparently comes with a price.
  • The Secret Saturdays: In the finale, Zak defeats V. V. Argost by baiting him into stealing Zak's Kur powers after Argost has already stolen the Kur powers of his anti-matter universe counterpart, Zak Monday. As any physicist will gladly tell you, matter and anti-matter do not mix, and Argost ends up learning this the hard way when the two conflicting Kur energies explode spectacularly… while still inside him. Needless to say, Argost does not survive the experience.
  • Our heroes' primary goal for much of Tangled: The Series is joining the opposing Sundrop and Moonstone so that Corona can be saved from the encroaching black rocks. However, given that the Sundrop is inside of Rapunzel at the moment, it might not be such a good idea... It's not, and Zhan Tiri gets to find out firsthand.
  • In the Young Justice (2010) episode "Encounter Upon the Razor's Edge", Razer, who had been struggling to master his blue ring and find hope and peace for himself after his stint as a Red Lantern, ends up being able to wield both his red and blue rings in unison, becoming a hybrid Red/Blue Lantern at peace with himself. His costume even gets split into equal red and blue halves to convey the point.

    Real Life 
  • Most of the universe is composed of Matter. Antimatter is its exact opposite. Mixing the two will invariably result in annihilation, a technical term meaning all their mass is converted to energy. Keep in mind that the energy of an object is the mass multiplied by the square of the speed of light (E=mc^2). You get a very big boom. Fortunately, most of the anti-matter in the universe seems to have exploded already. For a long time, this was one of the great mysteries of physics. Theoretically, the amounts of matter and antimatter in the universe should have been equal, resulting in complete annihilation of the universe.
  • Thermal shock: super-heat a piece of glass or ceramic, and then quickly introduce it to extreme cold, and watch what happensnote . Ideally you should be wearing eye protection, gloves, and coveralls when you do this.
  • Lightning forms due to differences in positive and negative charges within clouds.
  • Some daring, bored, or just plain stupid souls mix together substances with depressant & stimulant qualities for a different & more intense kick, ranging from your average Vodka Red Bull or whatever cocktails with caffeine in it to speedball, heroin & cocaine in one syringe. Of course, it's far riskier than the sum of its components as the conflicting effects makes it harder to realize that an overdose is happening.
  • This is the whole concept behind binary munitions. You take two chemicals which are more or less inert by themselves, but are Made of Explodium when combined.
    • Hypergolic fuels are a peaceful variant. Two chemicals, inert on their own, become a self-igniting rocket fuel when combined. NASA likes them because they're easier to store, impossible to accidentally ignite, and require a simpler mechanism to use than conventional fuels (just open two valves and you're on your way).


Video Example(s):

Alternative Title(s): Power Of Combining Opposite Forces


Circle of Protection

Jun came up with a defensive technique for Wu & Wei, using Wu's freeze breath to make a ring of ice around them and Wei's fire breath to superheat the top layer of said ice into a blast of steam.

How well does it match the trope?

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Example of:

Main / YinYangBomb

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