Follow TV Tropes

Following

Logical Weakness / Anime & Manga

Go To

Logical Weaknesses in anime and manga.


  • In Aldnoah.Zero, Trillram pilots a mecha with an energy shield that disintegrates anything that touches it. However, this comes with the disadvantage of blocking out all light, forcing the pilot to rely on remote sensors for guidance. Also, by necessity, there are gaps in the field to allow the mech to walk without falling through the ground, and to be able to receive the feed from his sensor drones. The protagonists exploit these vulnerabilities to great effect.
    • This is how the Earth forces, armed with fairly standard mechs with conventional weaponry manage to keep up with the Martians' more esoteric attacks. For instance, a Rocket Punch is deflected with a pinpoint-accurate shot to deflect its momentum, and a mech armed with plasma swords is dumped in the ocean - the heat causes a tremendous steam explosion that vaporizes the mech instantly.
    • Advertisement:
    • Another excellent use of logic on the part of the Terrans came when a Martian with what amounted to a laser sniper rifle on his mech took the high ground and could bring down anything within hundreds of miles of him. And then, with the help of a spotter on the ground closer to him, a Terran battleship hits him with conventional rounds. He knows exactly where the shot came from and fires back...and the laser goes over the ship. Lasers are just light when you get right down to it and light travels in a straight linenote , so the Earthlings just had to fire at him with shells on a ballistic trajectory (arcing, e.g., not in a straight line) from beyond the curvature of the Earth relative to him and he can't hit them back.
  • Advertisement:
  • In Anpanman, the bread-headed superheroes have water and mold as their weakness, seeing as they both make bread soggy and inedible. Baikinman and his Kabirunrun, being an alien bacterium and mold spores respectively, have soap and cleanliness as their weaknesses, with Mushibakinman, a cavity germ of the same species as Baikinman having a weakness to toothpaste. Also, the donburi-headed characters, being bowls of rice with a topping, lose all their powers if their bowls are emptied. Finally, Kurayamiman and the Ice Queen, being darkness and ice incarnate, both are weak against the sunlight.
  • Assassination skills in Assassination Classroom are for getting the drop on a target, not prolonged conflict, making most assassins far less effective at combat than their general competence level would suggest. Infiltration-style assassins like Irina lose most of their effectiveness once their cover is blown.
  • Advertisement:
  • The Dragonslayer in Berserk is one of the few non-magic weapons that can kill Apostles (the other few being cannonballs and explosives) with relative ease in short time. It works on the physics of swinging an eight foot tall slab of five hundred pounds of iron into someone until it dies, meaning only someone as absurdly strong as Guts can actually wield it. However it did end up having magic ability from the blood of the monsters.
  • In Bleach, Aizen's zanpakuto can completely control the perceptions of anyone who sees him release it even once. It thus stands to reason that Tousen, a blind captain, who cannot see it, must be recruited to his side, and Ichigo is at an advantage over him, never having seen him release his zanpakuto. Also, Yamamoto's flame shikai and bankai can not be tricked by illusions, so that's why Aizen won't confront him head on.
    • In fact, Yamamoto's plan to counter Aizen was quite literally Kill It with Fire by basically NUKING the entire area - it doesn't matter if he can't see Aizen, he knows Aizen is SOMEWHERE close, and hence within the blast zone. Without Wonderweiss it might very well have worked.
    • Shinji's zanpakuto inverts perception and movement (left becomes right, up becomes down, etc) messing with his enemies because they don't know which directions are inverted. It's claimed to be near impossible to beat due to muscle memory, but as Bambietta demonstrates, simply blowing up the entire area is guaranteed to hit him.
    • Zommari's Amor power allows his eyes to control anything they see. However, 'thing' is singular- he can only take control of one thing per eye (so if he gets someone's left hand, the eye he's using for that can't control any other part of their body, although he can seize control of an entire body if he gets the head of his victim). If there are more threats than he has eyes (like Byakuya's bankai- he only has 50 eyes, so he can only take control of at most 50 petals out of the millions said bankai creates), his opponent is free to toast him with the remaining attacks. His ability is also similar to kido, so it can be blocked using a kido barrier.
    • Baraggan Luisenbarn is a Walking Wasteland, projecting an aura that rapidly ages everything around him. Since it's always turned on, Baraggan has to constantly protect himself from his own aura. This proves fatal for Baraggan when a rapidly-decomposing object is placed where he cannot protect himself—namely, inside of his body.
    • Byakuya's shikai and bankai manifest as a massive number of tiny razor blades that shred his opponent. However, said blades can also cut him so they always stay a certain distance away from him, thus anyone who can get close enough can't be targeted by his shikai or bankai without potentially hurting himself in the process.
    • Moe Shishigawara's Fullbring is probability-based, and usually guarantees that he hits the jackpot with very powerful attacks right away. However, as a result of that, he's increasingly less likely to get a lucky hit as a fight goes on. His first punch against Ikkaku is strong enough to break Hozukimaru, but they get weaker and weaker from there.
    • Pernida has, among other powers, the ability to absorb powers by consuming their owners. However, in doing so he absorbs any weakness or Blessed with Suck tendencies. He is defeated when he tries to absorb Nemu, but fails to get her brain. Nemu has a Healing Factor so powerful that without her brain, which serves as a Power Limiter, the regeneration would take over her whole body and turn it into a mass of cancer. Which is exactly what happens to Pernida when he absorbs her.
    • Yhwach's power as "The Almighty" allows him to see all possible outcomes of an event he focuses on, and to counter anything he can see. However, the "see" in this is quite literal, as the power functions entirely through his eyes. Thus, he's just as vulnerable as anyone else to Aizen's perfect illusions, which leave him seeing fake possible futures.
  • Many of the Clow Cards from Cardcaptor Sakura have logical weaknesses. One example: Sakura managed to capture the Watery card by trapping it in an industrial-sized freezer.
  • A Certain Magical Index:
    • Accelerator is practically invincible due to his power—changing any vector he wants. He can easily deflect bullets, kill someone by reversing their bloodflow, turn air into plasma bombs, et cetera. However, he has to actually mentally perform all the relevant calculations to do any of this. Brain damage all but cripples his abilities. He has also learned not to stand in the middle of gigantic explosions, as the fire tends to consume all the oxygen around him. This is also true in regards to fighting an enemy who uses electricity and could therefore, in theory, turn all the air around Accelerator into ozone long enough for him to suffocate, as one Misaka-imouto figures out. After all, complete invincibility to external attacks doesn't mean much if you can't breathe. Although, he says he could get around this by simply carrying around a small air canister. And as of New Testament, he cannot deflect Hollywood Voodoo because there are no vectors to redirect.
    • Subverted with Touma's Imagine Breaker, which annihilates anything supernatural it comes into contact with... quite a Game-Breaker when up against sorcerers and espers. However, the power is confined to only his right hand. Therefore, if one were to sever his right hand, the ability would be nullified, no? Well, yes, the Anti-Magic effect would be gone, but it turns out the Anti-Magic is merely a side-effect of Imagine Breaker's power: its real purpose is to be the lock on some sort of Eldritch Abomination within Touma that is released if his hand is ever cut off. Said being is also one of the strongest entities shown so far. Chances are, if you were having trouble with a magic-cancelling right hand, you're not powerful enough to deal with that.
    • Acqua of the Back is a monstrously strong fighter, due to being simultaneously a Saint (someone born with a similar body to Jesus, granting them incredible power through the Law of Similarity), a member of God's Right Seat (meaning he has altered his body to similarly invoke the Archangel Gabriel), and a skilled user of magic. These powers would normally be mutually exclusive if not for his particular saint traits also including a connection to Mary, the Saint of Mercy. However, this status as a "double saint" means that when struck by the experimental Saintbreaker (a spell which replicates the Crucifixion), his conflicting powers go out of control and he explodes.
  • In Code Geass R2, Suzaku was able to exploit his instinctive fighting style and his Geassed command to "live" to be able to maneuver the Lancelot Albion so fast that Bismarck's Geass, that lets him see a few seconds into the future, still cannot provide enough of a head start to counter it.
    • Lelouch can give make anyone follow an order of his as long as can look his opponent eye-to-eye (he can use mirrors, but he has to be able to see the actual eye). Mao is able to circumvent this by wearing shades.
    • Mao himself can read the minds of anyone within five hundred meters of him, but without his headphones, he'll buckle under the weight of under so many minds.
    • Rolo's Geass allows him to temporarily stop the senses of anyone in an immediate area. But it only applies to senses. Physical phenomena (like bullets already in flight) keep going.
  • Shows up at several times in Daily Life with Monster Girl. The literally cold-blooded Miia is susceptible to cold temperatures, Centorea Shianus' giant breasts actively interfere with her coordination and balance during combat, Papi can't fly when she's wet, Suu can get diluted when exposed to too much water, Meroune gets poisoned by swimming in chlorinated water the same way a human would by breathing bleach fumes, and Rachnera can't handle extreme heat or cold and cannot breathe if her nonhuman abdomen's underside is submerged (that's where spiders have their respiratory orifices).
  • Darker Than Black loves this. The guy with electricity powers needs something that conducts electricity if he wants to attack at a distance, the guy who can freeze stuff needs water (or your arm) within reach to be able to do anything, and in the first episode of the second season, someone with Super Speed who tries to run in a rainstorm winds up riddled with holes due to elementary physics.
  • Date A Live: Miku Izayoi's voice won't be able to brainwash someone if they can't hear it. Likewise, since her powers comes from her vocal chords, she would be rendered helpless if her mouth is covered, as shown when one of Kurumi's clones dragged her into the shadow during their battle.
  • In Deadman Wonderland, the titular Deadmen each have a unique method of controlling their own blood and turning it into a weapon. But they still also need their blood to carry oxygen through their body, just like a normal human would. Most of them create some sort of melee weapon with their blood and thus can just draw it back into their body when they're done with it. But main protagonist Ganta's power is to fire his blood as bullets. This is one of the most powerful of the "Branches of Sin", but since it doesn't allow him to reuse his blood he'll pass out from the blood loss if he fires too many shots. This is exacerbated by the fact that Ganta is still a child and is fairy scrawny, meaning that he has a lower volume of blood to work with in the first place than the various adult Deadmen.
  • Dragon Ball:
    • Guldo can stop time for as long as he holds his breath. Naturally, overusing his power strains his respiratory system until he can only keep time frozen for a couple seconds at best.
    • Android 16 both exploits it and falls victim to it. His fully mechanical nature gives him an edge against Cell that no other member of the cast has, since Cell cannot just absorb him for an easy win. Unfortunately, once Cell evolves into a higher form, 16 can no longer match him in combat, and since he's a robot, he can't train himself to grow stronger like the rest of the cast.
    • Monster Carrot can turn anyone he touches into carrots, but has to actually touch them to do so. Goku gets around it by beating him senseless with the Power Pole.
    • Babidi manages to keep Majin Buu under control by repeatedly threatening to seal him away again. When Buu inevitably turns on him, the very first thing he does is strangle him; after all, Babidi can't recite the incantation to seal Buu away again if he can't speak.
    • Due to their large ears, Namekians has super-hearing. As revealed in Lord Slug, this makes them sensitive to high-pitched noises like whistling. The heroes exploit this when Slug assumes his giant form, making his eardrums the size of trash can lids; the sound incapacitates Slug with pain. Piccolo gets around it by ripping off his own ears so he can't hear it.
    • The Solar Flare technique blinds the opponent with a bright flash of light. It can be countered by simply wearing sunglasses. As shown during the Universe Survival Saga of Dragon Ball Super, it also doesn't work if the opponent is blind.
    • Assimilating others helps Super Buu grow stronger by gaining their powers, abilities, and memories. However, this also forces Buu to absorb their weaknesses, too — both physical and mental. His absorption of Gotenks gave him a major power boost, but that only lasted as long as their fusion limit, at which point he was left with the far weaker Goten and Trunks.
    • Dragon Ball Super gives us Ultra Instinct, a state that can be considered the ultimate expression of Don't Think, Feel, which allows a fighter to dodge pretty much any attack reflexively. The drawback is that it's almost entirely defense-oriented; as Whis explains, a fighter still needs to think when they attack, giving consideration to things like how much force to use and where to strike. Goku finds a sort of work-around while fighting Kefla, letting his body dodge her attacks while he concentrates on charging a Kamehameha, firing it off when he gets right up in her face.
  • In Et Cetera, the Eto Gun and the Zodiac use various essences to fire bullets, which based of the Chinese Zodiac and the constellations, respectively. For example, you would need something from a cow to fire an Ox bullet, a fish to fire a Pisces bullet, etc. If there's no essence available, the guns are little better than the toys they resemble, being unable to fire.
    • Speaking of the Pisces bullet, it's created with essence from a fish, so it only works in the water. Unless the essence came from a flying fish.
  • Eyeshield 21:
    • Kongo Agon has a reaction time that is close from inhuman, making him nearly impossible to shake off since he will always be the first to move. However to react he needs to see which allowed The Hero to smack him down from a blind spot.
    • Sena, the protagonist, can outrun most of his opponents in a straight dash, but he slows down and sometimes stops when changing directions, so opposing players need only to force him to turn in order to catch him. One of his techniques allowed him to avoid being tackled by making it look like he froze in time because of a sudden backstep and suddenly running at full speed after avoiding the opponent, but his opponent deduced that by speeding up the moment Sena backsteps, he'll be able to catch him. While Sena found ways to overcome these weaknesses, the sole weakness he could not overcome is the simple fact that there is somebody that he cannot outrun.
  • In Fairy Tail, Wendy Marvel, the Sky Dragon Slayer, can eat air (this is not the same as breathing) to increase her strength and heal herself. While she is potentially invincible, since unlike other Dragon Slayers, her element is EVERYWHERE, she would get sick if she tried this when the air is polluted.
    • One of the antagonists, Cobra, both subverts and plays it straight with one of his strongest abilities: Telepathy. Since he can hear another's thoughts, you'd be forgiven if you thought it could be stopped by thinking different from what you're really gonna do or flooding your mind with multiple thoughts to confuse him. Nope, turns out he's aware of both those problems. However, it is rendered useless if his opponent isn't aware of those thoughts themselves. In other words, if his opponent attacks without thinking entirely, or rather, fights instinctively, he can't predict their actions. It also doesn't work on those who have no memory. Also, since his power is based on his extremely fine hearing, he is vulnerable to loud noises.
    • From the same arc, Midnight's Reflector magic is a clear example of winning the Super Power Lottery, being able to reflect attacks, turn the scenery and the enemy's weaponry against them, and create illusions by bending light. When Erza fights him, her armors and sword are useless, but she quickly figures out three major weaknesses- he can only manipulate one area at a time (so if he's trying to throttle her in her own armor he has to dodge her attacks the old-fashioned way), he can't reflect human bodies (so he can't reflect his way out of Good Old Fisticuffs), and his reflection power is useless on something that's naturally elastic (like Erza's Robe of Yuen), since it will just stretch and then return to its regular shape.
    • When Gray fights Sugarboy, who has the ability to make things softer, his Ice Make power is for the most part useless because Sugarboy can soften the ice up to the point where it's basically water. However, he can't change any other properties, so he can't make an ice-coated floor not be slippery. He also has to be careful with using his powers around an item he doesn't want to destroy (like the key he and Gray were fighting over), because he could accidentally soften it up too. Gray, meanwhile, doesn't have to bother protecting the key, because he can just copy it with Ice Make.
    • When Elfman fights Bacchus in the Grand Magic Games, he finds himself overwhelmed by his foe's strength and speed despite using various monster transformations. Finally, when Bacchus decides to go for the finisher, Elfman switches forms one last time to his Lizardman form, exploiting the fact that Bacchus'bare hands are incredibly vulnerable to being damaged on the tough, spiky scales of his body with the speed and force he's fighting with. The fight then becomes the question of whether or not Bacchus' hands can tear down Elfman's defenses before he reduces them to bloody damaged limbs and can't keep fighting, a clash that Elfman just barely wins.
  • Fist of the North Star plays with this trope:
    • Kenshiro's Hokuto Shinken relies on hitting an enemy's Pressure Points, so Shin sicked on him Mr. Heart, who is so fat Kenshiro can't hit his pressure points. This gets subverted because, much to Shin's shock, Hokuto Shinken has a move to push away an enemy's fat (and another to hit an opponent's pressure points with an energy attack, but that one showed up in a different fight).
    • This weakness resurfaces, to much more effect, when Kenshiro faces Souther, who, having Bizarre Human Biology in the form of situs inversus totalis, has all the pressure points switched around. This invulnerability also vanishes if the Hokuto practitioner can figure its source — and while Kenshiro only manages during their rematch, Toki, a trained medic, knew it from the start.
    • Hokuto Shinken and Nanto Seiken practitioners are trained as assassins and formidable Combat Pragmatists who can sneak up on anyone except another practitioner. So they have no idea on how to deal with the rare opponent who can get the drop on them, like the Colonel (an experienced soldier and Nanto practitioner, who fought Kenshiro on a terrain that gave him a huge advantage and managed to last much longer than he had any right to) or Yuda (who is just that dirty, and a Nanto practitioner to boot. Rei beat him only because Yuda stopped to gloat before the finishing attack and froze up at the beauty of his desperate counterattack).
    • Rei's Nanto Shuicho Ken technique relies on fast and graceful movements, and thus on his legs. Yuda gains the upper hand in their fight by flooding the whole area, thus making him sluggish (and, to play it safe, kept the distance while spamming an attack that worked at distance, something Rei has no equivalent of).
    • Subverted with Shuu: he's blind, so some of Souther's soldiers guessed they would disorient him by surrounding him and make lots of noise... Except he apparently expected such a situation since he became blind and had years to come up with a counter.
    • During his temporary blindness, Kenshiro found himself in a similar situation. He swiftly dealt with his attackers thanks to his new ability to summon the skills of his late allies, including Shuu.
  • Fullmetal Alchemist:
    • The fact that Roy Mustang is useless when it's raining is something of a Running Gag. This is because, well, he uses fire, and rain is going to put a bit of a damper on his ability to get a flame going. However, this is only when he himself (specifically his hands) are wet, because if something else is covered in water he can just decompose it into hydrogen and oxygen then ignite that. This is because his gloves are made from a special material called ignition cloth that cause a spark when he snaps, when combined with transmutation circles on the back let him do his alchemy. Give him another source of flame (like a lighter) and he can overcome them being wet. In fact, he becomes more dangerous, because he now has all the hydrogen and oxygen he could ever need readily available (water's molecular structure is very simple, making it easier to manipulate).
    • Pride's Living Shadow powers don't work in total darkness since he needs a light source to cast a shadow. It's also weak to the flashbang that Alphonse used since the light is too bright to cast a shadow (not to mention he uses the shadow to see).
    • Wrath has the Ultimate Eye that allows him to instantly predict what will happen in battle, allowing him to perfectly dodge, block, and strike no matter what the opponent does. The one weakness is that it's an eye, and its power is therefore sight-based: it cannot predict an attack if it cannot see the attacker.
    • Ed and Al's alchemy, thanks to receiving knowledge from the Gate, is much easier to use than most since they don't need to make an alchemic circle and just need to clap their hands together. Of course, while this is incredibly useful and versatile, it requires the use of both functioning hands. Many times Ed and Al have been stopped from using alchemy by something as simple as their hands being bound...or just losing an arm. Thank goodness for the fact it's the replaceable limbs that get wrecked.
    • Greed's Ultimate Shield allows him to cover his entire body with a nearly impenetrable barrier, making him more or less invincible. However, his shield is the result of Greed rearranging the structure of the carbon in his body in order to give it diamond-like qualities; an alchemist who knows how his power works can easily transmute his carbon shield into the carbon-based, and extremely brittle, graphite, making the shield completely worthless.
    • Homunculi in general possess a Philosopher's Stone acting as their core, which contains the energy they use for their powers and regeneration. Problem is, Philosopher's Stones are created through alchemic transmutation... and there's a reverse transmutation that instantly depletes a Stone of its energy. This is used to one-shot the homunculus Envy, reducing him into a nearly-harmless larva.
  • In Future Diary, police detective Keigo Kurusu's future diary feeds him data from whatever investigation he's currently conducting. The solution? Expose his Dirty Cop ways and get him kicked off the force, meaning he's not on any investigation, totally bricking his diary.
    • The diaries, in general, have specific strengths and weaknesses. As such, the survival game depends on how a diary user works around his diary's weakness. Yukiteru's diary, for instance, can predict events that happen around him, but not events that happen to him, so anything unexpected happening to him like suddenly getting stabbed or stepping on a mine he didn't notice will most likely kill him. Also placing him in a confined space limits the things his diary can predict. Yuno's diary perfectly augments Yukiteru's diary by being able to predict anything he does and everything that happens to him. The downside is that aside from the "Dead End" message, Yuno's diary does not predict events that happen to or around Yuno herself.
  • Many of the heroes on High School DXD have logical drawbacks to their powers:
    • Issei's Boosted Gear will double his power every ten seconds - that means it usually takes at least a minute of combat before he's up to snuff. Additionally, particularly at the beginning of the series, his base power is no greater than an average human, and his body can't handle a huge amount of strength at once, placing a limit on how much he can power up before killing himself. He's able to increase this limit through training.
    • Kiba also relies on technique to make the most of an incredibly flexible Sacred Gear, making attacks to his legs a glaring weakness.
    • Koneko is incredibly strong and nearly indestructible, but not particularly nimble. Anything that can fly can avoid her easily, especially if there's nothing around to throw - this is a problem when most of her enemies have wings.
  • In Holyland, Tsuchiya's wrestling has three:
    • His best moves need him to go very low, even scraping the ground with legs, knees and hands. He found out the hard way that going that low on concrete is a quick way to harm himself, leading him to not use them unless he's on a soft terrain (he states the best would be sand, but a lawn is soft enough).
      • On the plus side, on his ideal ground kickers such as Masaki, Shogo and Yuu (the ones who defeated him, with the first being the one who exposed the concrete problem) would find that sand is too soft for them to stand on a foot while moving the other that fast, and Masaki and Yuu, who use boxing-style footwork, would find themselves heavily slowed down.
    • To avoid scraping on the ground, Tsuchiya goes with normal American Football-style tackles that expose the back of his neck and put his head in easy reach of kicks, making him extremely vulnerable against skilled opponents such as Shogo (who hit him with a downward punch) and Yuu (who kicked him in the head).
    • As a grappler, he was never trained to block or parry strikes. He usually wins by tackling his opponents faster than they could strike and then throwing him away, but when he faced Yuu, knowing his speed, uses a boxing semi-crouch stance, not knowing it relies on the gloves (that soften the blows enough for the arms to take them and enlarge the hands enough to prevent the fist from getting between the arms) to be effective.
  • This comes up sometimes in JoJo's Bizarre Adventure. Most notably, Vanilla Ice in Part 3 has a brutally powerful Stand, Cream, whose power is to disintegrate anything it touches. He climbs inside of it when it's used. Polnareff, however, realizes that when Ice is inside Cream, he can't see - to protect himself from Cream's power, he has to close its mouth, leaving him literally attacking blind. He's also worked out that Vanilla Ice is a vampire, something Ice himself hasn't realized, and so he tricks him into blowing several holes in the wall. The sun's still up.
    • Yoshikage Kira's "Bites the Dust" power traps its victim in a "Groundhog Day" Loop, and if anyone finds out about Kira's identity through the victim, they explode. The victim then restarts the day, though that person will continue to explode in every iteration at the same time. How does one get out of the loop? Because Bites the Dust is a Stand power, Kira needs to physically attach his Stand, Killer Queen, to the victim. If Kira himself ever gets into a situation where he needs his other powers, Kira must recall the Stand from the victim, ending the loop immediately.
      • Additionally, the people fated to explode will do so only if Bites the Dust is active when their fated time comes up. Therefore, if Bites the Dust is recalled before someone explodes, that person will not explode.
      • Bites the Dust is also meant to be entirely autonomous, acting to protect the victim from anything including assault. As Kira learns, this includes himself when he tries to punch Hayato. He also has no idea who was killed or even if a time loop triggered, only the victim, which Hayato takes advantage of to lure Kira into a trap.
  • In Kidou Tenshi Angelic Layer, Hikaru is created to be super fast and agile. The problem is that because she is so light, she doesn't have very much strength. She's also unable to fight well on places like an ice field.
  • Subverted in Kill la Kill: Gamagoori's Three-Star Uniform is powered up by being attacked in its defensive mode, so Ryuko thinks she can avoid triggering its second form by holding off her attack. At that point Gamagoori reveals that, just in case the enemy doesn't attack, the uniform can trigger the second form by deploying multiple whips to flog itself.
  • The manga of Kingdom Hearts: Chain of Memories has Larxene defeated in such a way. Sora and Donald combined their Fire and Ice spells to soak Larxene with water, causing her lightning spells to electrocute herself instead. This doesn't work in the game.
  • In Mahou Sensei Negima! Negi gets superspeed by turning into lightning. This is countered by Rakan pointing out that lightning gives off positive streamers at the destination meaning he knows where it's going to strike. And because his perception isn't sped up as well he can't properly control himself. The upgraded version fixes this by giving him those sped-up perceptions and having him fight at very short range as opposed to his previous hit-and-run style, giving an opponent almost no time to react.
  • Medaka Box loves this trope.
    • The best example is probably the array of weaknesses that Yukuhashi Mizou's abnormality, mind-scanning, has, thanks to it working really, really well. Catching even the smallest thoughts, he can't decipher input from a person who does not think clearly and jumps from one thought to another fast enough for it to be of use; he cannot function in the crowds by himself, due to being overwhelmed by the stream of thoughts; he feels pain that the people within his reception range feel; and, finally, he cannot fight a good person who honestly had legitimate reasons to oppose him, without seeing how they think and starting to empathize with them.
    • Medaka's own ability, The End, which allows her to copy and perfect anything used against her, is incredibly good, but it has two major weaknesses. First, she's forced to sit out several major fights because the opponents had powers she wouldn't want to copy (like a hitman whose power is bloodlust — The End would perfect it to the point where Medaka became a rampaging psychopath). Second, while she can copy powers, she can't copy things that require self-expression, meaning she has No Social Skills and fails at any form of artistic expression like music; even if her performance is perfect in a technical sense, it lacks any kind of passion and thus comes off as utterly boring and mildly disturbing. Because of this, she can't copy Styles.
  • MOON – Subaru Solitude Standing has Nico, a blind ballet dancer. While his other senses improved to an extent, his blindness remains with its logical weaknesses. He needs to feel the ground and objects when he's in unfamiliar rooms, and he can't dance duets. He can feel energy from other dancers, but most of them are so faint that it would be difficult to impossible to dance well with them. The fact that Subaru manages to send out enough energy to allow Nico to dance with her is considered an amazing feat.
  • This is pretty much ubiquitous in My Hero Academia, which drives home repeatedly that Quirks are physical abilities subject to the ordinary limits of the human body.
    • In general, any Quirk relying on close-range combat or touching an opponent has to actually get there first; smart opponents throughout the series who notice this will keep their distance utilizing their mobility or ranged Quirks.
    • Midoriya can use One For All to amplify his muscle strength, speed, and durability as a form of Magic Enhancement, but his muscles still suffer the backlash, so using too much power on weak muscles causes crippling injuries.
      • Most of Midoriya's troubles with One for All stem from the fact that he was given the power rather than being born with it, so unlike his classmates he doesn't have years of experience in using it.
    • Bakugo doesn't suffer the full recoil when he's Having a Blast, but he does suffer some, and can injure himself if he overuses his powers. His explosions are also created through his sweat-glands, so they are less effective in the cold.
    • Gravity Master Uraraka experiences symptoms of vertigo if she overuses her power, especially on herself.
    • Iida has Super Speed courtesy of a set of engines in his legs, which need to shift gears and can overheat or become clogged if not properly maintained.
    • Yaoyorozu can create objects from her body, but she needs material to create them from and must understand the specifics of exactly what she is creating (i.e. to create salt she must be aware that "salt" consists of NaCl).
    • Aizawa can nullify the quirk of someone else by staring at them, but must maintain line of sight and cannot blink while doing so. This has resulted in eye strain and frequent dryness from prolonged use. He also can't nullify mutation-type quirks, since they're part of the user's body and are always on.
    • Todoroki overheats when using his fire powers, and freezes over when using his ice powers. He was the product of an Arranged Marriage for the specific purpose of creating a child with a hybrid ice-and-fire quirk whose weaknesses would cancel each other out.
      • His brother Touya wasn't so lucky, as he got an extreme version of his father's fire powers... but inherited a weakness to fire from his mother. His fate is so far unknown, but it was definitely unpleasant.
    • Tokoyami has a Living Shadow that becomes weaker in bright light. Vice-versa, being in darker shadows strengthens it... to the point that it starts to get out of Tokoyami's control.
    • Kaminari short-circuits his own brain and temporarily becomes a dullard incapable of fighting back if he unleashes his full Shock and Awe.
    • Jirou's earphone jacks mean that she's vulnerable to very loud sounds.
    • Mineta, who can pull sticky balls from his scalp, will begin bleeding if he does too many at once.
    • Hagakure has to be completely naked to make the most of her Invisibility, so she's vulnerable to temperature extremes.
    • Tetsutetsu's Quirk will grow weaker if repeatedly hit with something hard and he needs to keep up a heavy diet of iron to strengthen his Quirk.
    • Neito Monoma can copy the Quirks of those he touches, but he can only use one quirk at its base state. One for All is a "dud" to him because he can only copy its power stockpile aspect and he doesn't have the time to build up a stockpile. This applies to any quirk that requires accumulating power- since he has no time for the accumulation to occur, he can't use that power.
    • Mirio has it the worst: He can make himself intangible, but he has none of the Required Secondary Powers. While intangible, he cannot see, hear, or even breathe, as every particle will travel right through him. He is also still affected by gravity when intangible, so every act of passing through things becomes a complicated process so he doesn't fall through the ground.
      • Mirio's quirk also exploits a Logical Weakness in Chisaki's quirk. The quirk needs touch to function, but Mirio can't be touched if he doesn't want to be.
    • Shinsou can Mind Control anyone who speaks to him, but only if they verbally respond to what he says. Anyone who knows this can safely avoid its effects by remaining silent. His Quirk also won't activate if his voice is electronically altered, such as speaking though a megaphone or electronic voice-changer, since technically the voice would be the device's and not his.
    • This is exploited in the Final Exam arc, which pits a pair of students against the teacher they'd have the most trouble with (the teachers are going easy on them; the purpose of the test was to see them face their weaknesses, not get curb stomped). Kirishima and Satou, who have time limits on their powers, fight against the Stone Wall Cementoss, who can easily beat them in a battle of attrition. Yaoyorozu and Todoroki, the students most dependent on their powerful Quirks, are up against the mobile Power Nullifier Aizawa. Kaminari and Ashido are not the brightest, so they face Principal Nezu. Ojiro and Iida face Power Loader, who destabilizes the ground so they can't get any leverage to use their abilities. Sero and Mineta, whose quirks are mostly used for sticking others in place, are pitted against Midnight, whose quirk can put them to sleep without her needing to move an inch. Squishy-but-mobile Tokoyami and Tsuyu are pitted against Ectoplasm, who can use his power to corner them. Jirou and Kouda's Quirks both rely on sound, so they go against Present Mic, and so forth.
  • In one episode of Myriad Colors Phantom World, the protagonists battle a Phantom that resembles a humanoid sunflower. Koito quickly works out that, because it's a sunflower, it always turns to face the sun, so they're able to defeat it by simply walking round it and attacking from behind.
  • Several techniques in Naruto are held back from being Story-Breaker Power by limits that are by-products of their useage or make up.
    • Naruto's Rasen-Shuriken attack is essentially a flechette bomb that attacks organisms' individual cells. It has a tendency to do this to the person who is holding it as well as the target, hence why Tsunade labelled it as a last result move. He overcomes this with Sage Mode as it allows him to throw it.
    • Kinkaku and Ginkaku subvert this with one of their ninja tools, which causes people to be sucked in if they say the word they say most in life. Ordinarily, not saying anything would be an easy way to avoid falling victim to the tool's effect, but anyone who remains silent for too long also gets pulled in.
    • Shikamaru's shadow powers, which often require his shadow to touch the enemy's, are often influenced by the amount of light available. For example, one Filler Villain manages to escape his jutsu with a smoke bomb.
    • Water jutsus often require existing sources of water to be effective. As such, one Filler Villain (who uses his Twin Tonfas as dowel sticks) is defeated by being lured to an area with virtually no groundwater.
    • Tobi's abilities to make himself intangible. Of course, he can't attack while phased, since it would just go through his foe. The best time to attack, then, is when he attacks. He does try to get around this when fighting Minato by using chains that trail behind him, in order to catch foes who he phases through.
    • Also, due to shared Mangekyo Sharingans, Tobi's phasing is absolutely useless against Kakashi; he can match phases with Tobi and attack him either way.
    • Sharingan users do not gain any Required Secondary Powers to any techniques they copy; they are still subject to the particular shinobi's personal limitations. Sasuke's attempts to copy Lee's taijutsu being the most cited example (Lee is a taijutsu specialist due to a lack of aptitude in the other arts, so his body is at a level of conditioning the more-balanced Sasuke can't match).
    • Rock Lee has a really obvious weakness that stops him from being among the strongest ninja: He can't use ninjutsu or genjutsu, two-thirds of the fundamental ninja arts. So while he can move and hit hard he can't defeat illusions or enemy that can counter physical attack (his rival Neiji for example can reflect any attack with his Eight Trigrams Palms Revolving Heaven jutsu and his gentle fist attack organs and chakra point which no amount of physical conditioning can stop)
    • On the other end of the spectrum, the specific taijutsu style utilized by the Hyūga clan, demonstrated as early as the Chūnin Exams arc, exploits an inherent logical weakness in all human beings: using their Byakugan, the Hyūga are able to see the chakra networks of others and use their own chakra-based abilities to attack both the chakra network and internal organs of their opponents because, (as mentioned above with Rock Lee) no matter how hard you train your body, you can't strengthen your heart or liver and whatnot.
  • The Devil Fruits of One Piece can frequently fall into this.
    • Luffy's rubber body, which makes him more or less immune to blunt force, renders him no less vulnerable to blades than he ever was. For Luffy, heat also apparently makes him extra squishy.
    • Nico Robin's ability to grow countless copies of her body parts from any solid surface within a large radius, including right from bodies of her enemies, and perfectly control them as if they were normal parts of her body, would be incredibly powerful if not for the fact that copies also transfer feedback as they were normal parts of her body - not only she feels pain whenever they are damaged (which happens easily, given that they retain her unimpressive durability), enemies can channel harmful Devil Fruit effects through them.
    • God Eneru's lightning-based powers had no effect on rubber, thus allowing Luffy to harm him. But even then, Eneru had Observation Haki that allowed him to predict any attack, so Luffy still couldn't hit him. Luffy got around that by ricocheting his punches off of a wall. Since Luffy wasn't consciously controlling where his attacks were going after they ricocheted, Eneru couldn't predict them, and he got pummeled. Eneru eventually lost to an attack that he could foresee but not until it was too late because it was simply too fast.
    • One of Eneru's top fighters, Satori, has the same ability to predict any attack and relies on it so much that when something unexpected happens, he gets really rattled. Luffy takes advantage of the distraction to wrap him up. Satori could see Sanji's ensuing kick coming, but bound as he was he had no ability to counter it.
    • Perona has the power to generate ghosts that strip anyone's spirit and optimism from them. But to her shock, they don't work on Usopp. He's such a pessimist he actually inverts the power: depressing the ghosts and even Perona herself.
    • Magma beats fire due to the hotter temperatures and magma being able to snuff out fire from its oxygen source. Meanwhile, ice has a hard time against fire and to a greater extent, magma. And for an odd example, the more or less completely useless by this point Mr. 3's wax power in fact blocks almost every single poison Magellan has, although it is almost completely useless in the intensely hot fourth level of the prison.
    • Several Alabastan soldiers drink a potion that makes them extremely powerful, but kills them in minutes. Crocodile realizes this and decides to simply wait out the duration, out of reach of their attacks, letting them die. Crocodile's was finally defeated when Luffy figured out that Crocodile's ability to turn into sand can be hampered by becoming wet, so Luffy coated his hands with his own blood, allowing his punches to work.
    • Logia in general fall into this category, as they are literally elemental beings (though not always stuff we'd consider "elements"), and as such are vulnerable to the weaknesses of that element. Lightning losing to rubber, sand losing to liquids making it stick together, candy (no, seriously) losing to cooking flour that negates its stickiness so that attacking enemies won't become trapped, etc. Considering how powerful a Logia is, and how invulnerable they are, exploiting a logical elemental weakness is one of the few things on the entire planet that can even potentially harm them, unless a person has Armament Haki, which lets them hurt Logia users even if they're in an elemental form. Plus there's the matter that Logia are more sensitive to water than other Devil Fruit users: as in Luffy can get splashed and still fight (even if he's submerged, he just can't move himself though others can still manipulate his body), while if someone like Smoker gets doused, he can't transform the wet body part until it's dry.
      • Blackbeard's Dark Dark fruit, despite being a Logia, works very differently. His element is darkness, which has black hole-ish properties... but said gravity is constantly applied to him. It not only forces his own body to stay together (he can't assume an elemental form), but it also attracts enemy attacks towards him; this makes said attacks harder to avoid, stronger and more painful.
    • Franky became a cyborg after suffering severe injury, giving him numerous gadgets and a super-durable steel body. However, since this was achieved by operating on himself, his back is unprotected—he can't modify something if he can't see or reach it.
    • Pica's Stone-Stone fruit initially seemed like an utter Game-Breaker. It allows him to assimilate with and control stone, and everything on Dressrosa was made of stone. He was finally beaten when Zoro realized if you cut his stone form in half, he had to escape into one part of it, and so Zoro chopped a giant stone form to bits while keeping them in the air, until there wasn't any stone large enough for Pica to hide in, nor could he escape into the ground. It was over for Pica after that. (Such an opponent needs to be strong enough to cut stone in the first place, of course.) This logical weaknesses was actually attached all the way back to Buggy the Clown. While his Chop-Chop powers enable him to split his body into numerous floating pieces, some part of his body needs to be the "base" part and stay on the ground. That's why Luffy was able to find and successfully attack his feet.
    • Charlotte Cracker of the Big Mom Pirates ate the Bisc-Bisc Fruit, which gave him the power to conjure up biscuits. Since Heart Is an Awesome Power, he's skilled enough to reshape the biscuits into armor and warriors that Luffy needs his Dangerous Forbidden Technique to fight against. Luckily, our Idiot Hero figures out a Mundane Utility; Since biscuits are edible, all Luffy needs to do is eat Cracker's creations to hold his ground (though due to Cracker's abilities and Haki, Nami had to use water to soften them up at first, like regular biscuit.)
    • A villain in a Filler arc had the Pet-Pet Fruit, which created Hypno Trinkets that made anyone affected by them have to obey his orders. Trafalgar Law defeated this by putting in ear plugs, since someone who can't hear the orders, logically, couldn't obey them.
  • Overlord has Entoma Vasilissa Zeta. Since Entoma uses insects to fight and is herself part insect, insecticides and such are extremely effective against her. It also has archer ace Peroroncino, who is logically really weak in narrow, cramped passages.
  • Rave Master: During one battle, Haru is facing a mind-reading opponent, so he comes up with an unusual use for Rune-Save: a magic sword whose power is based on sealing. He invokes its power to seal his own mind momentarily: just long enough to land a combo that defeats his opponent.
  • Rosario + Vampire:
  • The Seven Deadly Sins:
    • Ban has Complete Immortality and can heal from pretty much any injury. He's still vulnerable to things like being petrified and getting his soul stolen.
    • The Ten Commandments all have incredibly powerful abilities, but are not immune to them themselves, forcing them to limit their own actions. For example, Galan turns to stone anyone who lies or breaks an oath in his presence. He Cannot Tell a Lie lest he fall victim to his own ability (which eventually happens when he panics and runs away from Escanor after they had both sworn an oath that they would keep fighting until one of them was dead).
  • Shokugeki no Soma: Soma is a very experienced and skilled chef, and has worked on-and-off at his dad's "special-of-the-day"-restaurant since he was three. However, he is clearly out of his depth when faced with any situation when his experiences aren't applicable. He flounders with kitchen French, fails to consider his dish's staying power on a heat plate when devising a recipe for a buffet (a situation which would never occur at his dad's restaurant), can't keep up with cooking multiple multi-course meals (as opposed to single dishes, one at a time), and struggles with making the type of high-impact foods that win cooking contests, as opposed to the "enjoy-the-meal" style he's used to.
  • Soul Hunter: When Choukoumei goes One-Winged Angel and assumes his true form, that of a giant plant that spreads uncontrollably, Youzen deduces that since he is now a plant, all he has to do is kill the roots to get rid of it. But he realizes that it would be useless since Choukoumei would just spreads his seeds and grow faster than he could burn it. Taikoubou then decides to use another logical weakness, and freezes the whole thing with one giant icy tornado.
  • Episode 7 of Space Patrol Luluco revealed that Life Fibers (being made of thread) are incredibly flammable.
  • In Tiger Mask W the immense Bigfoot was immediately identified as being poor in ground fighting due his own bulk hampering him and having low stamina due all his fights ending in five minutes. In his fight with Tiger Mask it ends up subverted because he or his trainer could guess the weaknesses, so he trained himself to overcome them (he actually almost kills Tiger Mask in ground fighting, and Miss X states his stamina is unrivaled).
  • Toriko has the horrendously broken "Minority World" ability, which allows the user to invert chances and properties of pretty much anything. For example: making falling objects go up instead of down, the ground soft and malleable instead of hard, attacks miss instead of hit, and lungs taking in carbon dioxide instead of oxygen (which will eventually kill people). However, you can counter this by purposefully doing the opposite of what you intend to do - for example, aiming your attacks away from your opponent so that Minority World will make them hit instead.
  • Keima, the main character of The World God Only Knows, is a legendarily skilled player of Dating Sims in which one pursues girls. However, the opposite of this (girls pursuing him) frequently leaves him at a loss.
  • YuYu Hakusho:
    • Kaito's ability to steal the soul of anyone who says the forbidden word is useless if no one speaks at all. Kurama, who has figured this out, proposes an alternative in which the condition gets stricter over time, and convinces Kaito to accept by adding the condition that if neither of them has violated the condition when the time has expired, Kurama will lose his soul, putting Kaito at an advantage.
    • Much earlier, a demon tried to cast an incantation to shrink Yusuke. However, the spell backfires and shrinks him instead. Genkai explains that these kinds of incantations rely on a receptive ear, and as it turns out Yusuke's ears were inadvertently plugged at the time, leaving only one target for the spell.
    • Yusuke also manages to handily take down a mind reader; the mind reader knows exactly what he's about to do, just not when. Yusuke's attack comes so quickly once he actually started moving that the mind reader couldn't react quickly enough to avoid it.


Top

Example of:

/
/

Feedback