Characters / Kamen Rider Build (Blood Stalk)

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This is a partial character sheet for Kamen Rider Build. Visit here for the main character index. Subjective trope and audience reactions should go on the YMMV page.

This page details tropes for Blood Stalk for Kamen Rider Build.

Warning: Due to the sheer number of spoilers associated with this character, all spoilers are left un-marked. New viewers beware.

Evolt/Blood Stalk/Kamen Rider Evol

Portrayed by: Tetsuo Kanao (voice), Kazuya Okada (suit)

Mistmatch! Co-Cobra...Cobra...Fire!

Another figure behind Faust, an enforcer and strategist that carries out his duties with a disturbingly flippant attitude. Openly refers to himself as Faust's strategist.

In truth, Stalk is just another name for Evolt, an extraterresial lifeform from a distant star that came to Mars with the Pandora Box and used its power to turn the once-green planet into a lifeless wasteland before being defeated in a final duel with the Martian queen Vernage, who destroyed his Evol Driver and left him a helpless mass of sludge. Evolt laid dormant for untold millions of years before an unmanned probe from Earth arrived to the red planet, prompting Evolt to send part of his being along with the probe on its return. The rest of him infected the astronaut that came to Mars next, Soichi Isurugi, taking over his body to use as Evolt's new host as he planned to reclaim his lost half, rebuild his shattered Driver, and bring about the destruction of Earth.

Tropes that apply to him in general

• 24-Hour Armor: Unlike Night Rogue, who seems to only wear his armor when needed, Evolt prefers to wear the Blood Stalk armor at all times whenever he is around other villains, to the point it is implied even members of Faust have no idea who he is under the mask. He eventually becomes more lax about this policy after his identity comes out, but still prefers wearing the suit nearly all of the time.
• A Form You Are Comfortable With: Even after gaining his own body and being seperated from Soichi, he is so used to Soichi's body due to his long time spent in it that he still takes on Soichi's form as his default "human" form outside of battle. It's more "A Form You Aren't Comfortable With'' though as he clearly enjoys using it to mess with Sento and the gang.
• Alien Invasion: He is eventually revealed to be an alien invader attempting to wipe out all life on Earth, as he did to Mars in the ancient past.
• Aliens Are Bastards: His true identity as Evolt is an alien whose idea of fun is destroying all life on planets and who spends most of the show possessing an innocent man to make him do horrible things while fully conscious of everything.
• Ambition Is Evil: Everything Evolt does is for the sake of becoming more powerful and/or to have control over someone or a group of people. His main goal is the creation of a universe in his twisted image. While the secondary one is to become strong enough to overcome his more powerful sibling so he can't interfere with his primary motivation. He'd stop at nothing to get what he wants Not even whatever the minuscule potential sympathy he might have had over the people he betrayed would make him stop.
• Ancient Evil: It is not clear exactly how old Evolt is, but he has been lying dormant ever since the destruction of the Martian civilization, meaning he is millions of years old at least, and Mars wasn't the first world he has destroyed.
• Arch-Enemy: To all four main Riders, each of whom has a good reason to loathe him.
  • For Sento, Evolt wiped his mind to give him a new identity, posed as a mentor figure to him so he could keep using him as a pawn and perverted his research to be used for evil. He also later kills Sento's dad.
  • For Ryuga, Stalk was using him as a pawn since before he was even born, corrupting his mother's womb to make him into a Blood Tribe spawn. He also killed Ryuga's girlfriend and subjected him to various other torments, in order to raise his Hazard Level and manipulate him into becoming the perfect host.
  • For Kazumi, Stalk turned him and three of his farm workers into super soldiers and used them as pawns in a bid to raise the Hazard Levels of the Riders. He later betrays them over to Seito and gets Kiba and Akaba killed using the Washio brothers and Kamen Rider Rogue.
  • For Gentoku, Stalk corrupted him into becoming Night Rogue and founding Faust. He later subjected him to brutal, inhumane and life-threatening training to turn him into Kamen Rider Rogue. And when Gentoku finally does turn good, Evolt kills his father.
  • Ironically, Evolt's arch-enemy isn't any of those four, but his own older brother Killbus, one of the few beings in the universe stronger than him.
• Archnemesis Dad: As it turns out, the alien that accidentally sired Ryuga was a piece of Evolt, effectively making him Evolt's son, which Evolt eventually acknowledges. This doesn't make Evolt any kinder to him than anyone else and he repeatedly tries to murder him.
• Ax-Crazy: And how! He takes his sadism to insane levels to the point that his fellow Blood Tribe members have become fed up with it.
• Back from the Dead: In the Cross-Z V Cinema, Evolt manages to recover from being sacrificed for the New World by attaching a piece of himself to Ryuga which he could regenerate from if it ever came into contact with Pandora's Box.
• Becoming the Mask: Subverted: Stalk's voice changer is initially used to obscure his identity, but after the first reveal about his identity he continues to use it while wearing the suit, unlike almost every other case of a voice changer-using character in the franchise. The second reveal comes with the Wham Line that shows the deeper voice is Evolt's actual voice, and he was never using the voice changer at all. It is played with some more when even after acquiring his own body, Evolt prefers Soichi's shape, and even mimics his voice while in that form, but this changes nothing about his personality.
• Berserk Button:
  • His plans being derailed. Evolt is very cunning and often in control, but the moment something unexpected throws a wrench in his works and sets them back, Evolt does not take it well.
  • A 'lesser lifeform' defeating him is another thing Evolt cannot stand and any genuine loss to an 'inferior' opponent will royally tick him off.
• Bifurcated Weapon: As opposed to Rogue who prefers to Duel Wield the Transteam Gun and the Steam Blade individually, Stalk prefers to fight with the Combined Steam Rifle.
• Big Bad: Evolt is eventually outed as the true main villain of the show, standing above Faust, the three nations, and even Juzaburo Namba. All of the other factions, heroes and villains alike, dance to Evolt's tune as he goads and manipulates them to reach ever-greater heights of destruction in fighting one another, all for the sake of achieving the deadly purpose of the Pandora Box.
• Big Bad Friend: He acted as one to the protagonists for the first few episodes until his cover was blown by Nabeshima when he regained his memories. Even after the revelation though, he continues to act chummy with Sento and co. and treat them like old friends rather than enemies, though they very much don't reciprocate the sentiment.
• Bishōnen Line: In a loose way, the transformations Evolt possesses, match the way Dragon Ball's Frieza forms go in their purpose:
  • Kamen Rider Evol's Cobra, Dragon and Rabbit would be considered limiters to the true potential of his "true" form.
  • On the other hand, Black Hole Evol is his true form. At least as stated by the heroes, which Evolt doesn't deny. There is also the fact that he removes the Evol Trigger, which would have spelled a detransformation for other Triggers, instead he remains on his Black Hole form. The Fever Flow/Phantom State and its more powerful forms, The Ultimate State and the Ultimate Form are Super Modes that allow him to warp between worlds. Something not even his Black Hole form is capable of (but it is stated in the official encyclopedia, at the very least, he can detect worlds.).
• Bizarre Alien Biology: Evolt is a very strange organism to say the least, with biology like nothing on Earth and having more in common with a Blob Monster than anything else. This is a problem, as his venom is so unlike anything on Earth that it is impossible to cure.
  • There is also the fact that according to the official expanded material (the official Kamen Rider Encyclopedia/Zukan) seems to imply his Black Hole form possess various computer like devices on his person. Including saying that the circle on his chestplate is a reactor. Making Evolt potentially a Cyborg. Which gets even more confusing, as he is a blob creature as mentioned before.
• Blessed with Suck: The black Pandora Panel and Lost Bottles are secretly this. While having them makes Evolt able to warp between planets and consume their resources, their real function is to make him vulnerable to the white panel, which will use him as a Living Battery to merge Build's war-torn universe with another one and undo Evolt's reign of terror.
• Blob Monster: Evolt's true nature has shades of this, as his shape-shifting gives the impression of him becoming a mass of liquid and rearranging himself and the parts he separates from his main body assume the form of small blobs of material.
• Body Surf: Evolt first possessed Soichi on Mars, then hopped into Ryuga after he hit Hazard Level 5. Then he did the same to Sento when he reached Hazard Level 6.
• Breakout Villain: Evolt is easily one of the most popular villains in the later Heisei era, nearly matching Kuroto Dan's level of fame. He returns in NEW WORLD: Cross-Z which ends in a way that sets up to make future appearances, and he also pops up in the Kamen Rider City Wars video game as a major character there too.
• Broke Your Arm Punching Out Cthulhu: He shared a mutual one with Vernage back on Mars. While he did succeed in wiping out the Martians, their Queen proved powerful enough to defeat him in one final duel, leaving him trapped and nigh-helpless on the planet he'd destroyed.
• Brought Down to Badass: Twice. Fighting Vernage on Mars broke his Evol Driver in half and reduced him to just a helpless blob of goo, but even in this state he could amplify the strength of a human host to Hazard Level 5. When he manages to revive himself in the Cross-Z V-Cinema, he's reduced to only being able to use his Blood Stalk form, and even a deliberate juicing up from Sento only lets him reclaim Evol Cobra. He displays his Phantom State form after the battle, but his dialogue ambiguously indicates that he's not at his full might. Which suggest that Feverflow (which is a evolution of his already devastating might as Black Hole) might just be a way for him to keep up with them alongside exiting Earth and traveling faster than his other forms.
• Cain and Abel: Evolt and Killbus don't get along at all. Both want to wipe out everything in the universe but Evolt wants leave himself alive while Killbus just wants to destroy everything including himself, which ironically makes Evolt the Abel to Killbus' Cain.
• Can't Catch Up: On the giving end of this to the other Kamen Riders, who spend much of the series trying and failing to catch up to him. Early on he holds back his true power because he needs the heroes alive for his plans, so most of his losses are because he wants them to win. It is only in the later half of the series that the heroes even begin to catch up to him. Unfortunately, it is also around this time that he gets back his Evol Driver and becomes Kamen Rider Evol, who outclasses all the heroes at the time of his debut, which he claims to only be a small percentage of his true power. Sure enough, every time it seems that the heroes are catching up to him, he manages to unlock more of his power and outclasses the heroes again. Ultimately subverted towards the end, however, as the heroes manage to catch up, something that begins to frustrate and enrage Evolt.
• Catchphrase: "Ciao!" Even his driver says it whenever he initiates a finisher in Evol Cobra!
• The Chessmaster: He refers to himself as a game master in episode 4. Despite his apparent laziness, everything he does is part of a carefully laid strategy, so much so that almost everything that happens in the first quarter of the series is one gigantic scheme of Evolt's coming to fruition, and that scheme is just the first step of his far grander one.
• Chronic Backstabbing Disorder: Nearly everyone Stalk works with is stabbed in the back somehow, a consequence of his playing every side and his plan being to eventually kill them all. Rogue is his favorite chew toy, who becomes aware enough of this status to thwart Stalk's backstabbing on occasion, but remains too blinded by his ambitions to avoid Stalk's continued manipulations. He ultimately intends to kill literally everyone, so loyalty is decidedly something he lacks.
• Classic Villain: Represents pride (he sees himself as superior to every other lifeform in the universe), wrath (he loves tormenting others, particularly those who've earned his enmity) and gluttony (he's a Planet Eater who consumes worlds to become more powerful).
• Consummate Liar: He lies so often that it really shouldn't surprise anyone anymore. Notably, the first episode of ROGUE reveals that he seemingly lied about Takumi Katsuragi being Faust's founder since it was shown that Gentoku did most of the groundwork and recruiting with one of those recruits being Katsuragi himself.
• Contrasting Sequel Antagonist:
  • Despite having a lot of similarities on the surface, the duplicitous and bombastic Evolt/Kamen Rider Evol easily differs a lot from the erriely composed and relatively low-key Masamune Dan/Kamen Rider Cronus:
    • While being just as much Faux Affably Evil, The Chessmaster, and an Archnemesis Dad as his predecessor, Evolt is presented as The Slacker and a Troll when interacting with others, while Masamune made sure he came across as an respectable and professional CEO at all times.
    • Both are Manipulative Bastards who managed to get practically all of the central characters in their respective story to unknowingly do their bidding in one form or another and waited until around the final stretch of their respective series to fully take up the position of the Big Bad. But whereas Evolt in Build is firmly The Man in Front of the Man from the very beginning as a major character, Masamune was The Man Behind the Man who started out as a Chekhov's Gunman in Ex-Aid; his true role in that series not being fully revealed until his show's endgame began.
    • In regards to Rider powers, Kamen Rider Evol is an Ancient Evil and alien horror whose central abilities revolve around black holes and space travel, which greatly differs from Kamen Rider Cronus, who was an amoral human being that had the power to stop and even rewind time.
  • Evolt could also be considered one to the Great Leader from the original Showa Kamen Rider series. Both are supernatural forces behind evil organizations and nearly all of the problems faced by the heroes, but whereas the Great Leader was The Man Behind the Man to all of the terrorist groups he started up and let his minions face the Kamen Riders while generally not do very much himself, Evolt is The Man in Front of the Man who acts as a subordinate within each of the villainous factions he joins all while manipulating their leaders into unwittingly doing his bidding and is very proactive in engaging the heroes.
  • Coincidentally, Evolt is similar to the Great Leader of Neo Shocker from Skyrider alongside Kamen Rider Gaia: Both are purple/violet colored alien threats whose plans are to eradicate of all humanity. The difference is that, like the above states, the Great Leader is usually behind the scenes. Only taking control by the end as his underlings fail him. Evolt on the other hand, pretends to merely be an enforcer, yet actually is the one turning the wheels of Faust and the governments in order to empower himself. Their monster forms also contrast: The Neo Shocker Leader is a reptilian, dragon-like beast that wouldn't be out of place in a Godzilla film. Meanwhile, Evolt's Phantom State is more of a abstract, magenta colored, humanoid ''thing'' that would fit in Ultraman's extraterrestrial rogues gallery.
• The Corrupter: Through his Pandora Box and its Hate Plague, although with Namba and Utsumi he didn't even need the Box. Evolt also feigns trying to corrupt Sento and Banjo by mocking their idealism, but corrupting them isn't the goal; manipulating them by implying he wants to is.
• Crazy-Prepared: Evolt put not one but two contingency plans to revive himself in place after he achieved his Phantom state, even though he believed himself to be invincible at the time.
• Create Your Own Hero: When Takumi Katsuragi tried to stop Evolt before his plans went into motion, Evolt instead wiped his memories, changed his face and raised him (under the guise of Soichi Isurugi) into Sento Kiryu in order to use him as a pawn in his plans. It worked for most of the series, but then Sento ends up becoming one of the main factors standing between him and ultimate victory just when his plans start to reach their end. What's more, the Genius Bottle, a completely unexpected variable in Evolt's plans and a vital key to stopping him, turns out to be only usable by the kind of person he raised Sento into, a hero of justice.
• Cruel Mercy: If anything could be considered Evolt's Fatal Flaw, it is his love of this trope. He could have opened the Pandora Box as early as episode 12 if he would just killed Nabeshima instead of wiping his memory with amnesia that turned out to be temporary. By episode 39 he came out victorious, completely and totally, but leaves the Riders and humanity as a whole alive when there is nothing that could stop him from killing them all because he wants to turn them into Lost Smash. This act of sadism allows the creation of the Genius FullBottle, the first thing to be a serious threat to Evolt, and his response is to double down and leave Sento alive with the intent of crushing his hopes first. He tops himself in episode 45 by letting his sadism ruin an assured victory twice in one episode: first by killing Shinobu slowly so that he has time to give his son a final hint, and then by forcing Sento to watch him destroy a planet and then bringing him back to Earth instead of just dumping him out in deep space, which gives Sento time to have the realization that lets him undo Evolt's hard work.
• Deader than Dead: His final fate: he is not only killed but the merger of worlds means he is effectively erased from existence. Except until he regenerates from the DNA he placed in Ryuga Banjo.
• Death by Irony: Evolt meets his end at the hands of the same person he molded into a hero — Sento.
• Death of Personality: It's hinted that not all of Evolt's personality survived his death at the end of the series and regeneration from Ryuga in NEW WORLD: Cross-Z, as the new Evolt is a lot friendlier and less sadistic than the one in the series, even if his manipulativeness and showy behavior are still intact.
• Defiant to the End: "You destroy me? That will never happen, you damn human!"
• Demonic Possession: Until he gets the Evol Trigger back and active again, Evolt has to use others as host bodies. He spends most of the show in Soichi, then has brief tenures in both Banjo and Sento's bodies before he reclaims the Trigger and stops needing a host. Once he's used to being complete, he can send out chunks of himself to possess others at will, at the cost of not being able to use Black Hole Form unless he's all in one piece.
• Deuteragonist: Could be seen as this for NEW WORLD: Cross-Z, which is basically an extremely tenuous buddy cop film between him and Ryuga. The Final Battle even has him merging with Ryuga to give him his final form.
• Dimension Lord: His end goal, once he's devoured everything in the universe and remade it into his "new world".
• The Dog Was the Mastermind: The reveal that Blood Stalk is Soichi is surprising, but not something you couldn't guess if you were paying attention to the clues throughout the series. The reveal on the other hand that it's "Blood Stalk" who's actually possessing Soichi is something it's safe to say no one saw coming.
• Enemy Mine: Assists Build and co. in fighting against his Ax-Crazy Stronger Sibling Killbus. Cruel as he may be, Evolt at least has some sense of self-preservation while his brother just wants to destroy everything for fun.
• Enigmatic Minion: When we first see him, he is a mysterious enforcer for the Faust organization. It takes about a quarter into the series for his civilian identity to be discovered, and it is only around halfway through that his true identity is revealed along with the fact that he is the true antagonist of the series.
• Evil Cannot Comprehend Good: Despite his complex knowledge of the human mind, Evolt has difficulty understanding why Banjo would be so fiercely protective of Sento even after learning the truth behind Katsuragi's attempt to murder him. Even if he doesn't understand it, though, he's willing to use it as a tool to manipulate Banjo.
• Eviler than Thou: Evolt proves to be this to every other villain with the possible exception of Bikaiser from the movie, from Night Rogue to Namba. Namba in particular gets a rude awakening when Evolt decides You Have Outlived Your Usefulness and wipes his faction out in short order.
• Evil Laugh: A deep, echoing sort of laugh that will haunt your dreams. All of them. It is mercifully rare. His Evol Driver does a totally psychotic one when he transforms. Even his EvolBottles are made to look like they're silently laughing whenever he turns the crank of the Evol Driver. Once he fuses the completed Black Pandora Panel into himself and cranks up the Black Hole Trigger to its version of Max Hazard On, it turns downright maniacal.
• Evil Luddite: If his rant towards Sento in episode 35 is to be taken at face value, Evolt believes that science making life more convenient leads to people taking things for granted and eventually getting wrapped up in war. Of course, given that he has spent the series trying to goad Sento into advancing technology for his own purposes, wants to anger Sento enough to raise his Hazard Level ever higher, and has gone out of his way to manipulate all sides into advancing warfare for his plans to wipe out all life, it’s best to take his lines with a grain of salt. There is also the fact, that he created the Drivers to begin with, other members of his species would rather steal the Rider's own. So if Evolt genuinely hated technology, he'd a a Hypocrite
• Evil Is Petty: Evolt is this due to a combination of being both extremely narcissistic and incredibly vindictive. If his ego is bruised, he can't help but try to severely and sadistically punish anyone who bruises his ego. This is a Fatal Flaw of his and his biggest weakness, as it comes at the cost of his pragmatism.
• Evilutionary Biologist: He has spent over a decade fostering research into human exposure to Nebula Gas and the Rider System in hopes of creating a human body with a high enough Hazard Level to possess so that he can use his full powers through it. Once he is done with that scheme, he keeps indulging in the hobby, this time to create Lost Smash.
• Evil Mentor: Because Evolt's schemes need both Banjo and Sento to have extremely high Hazard Levels, he plays a mentor figure whenever they need a push to move forward.
  • The ROGUE mini-series reveals that he was this with Gentoku and, to a lesser extent, Takumi Katsuragi as well. Ostensibly under the orders of Namba Heavy Industries, he stoked Gentoku's then fairly dormant influence from the Pandora Box, helping to turn him into the egotistical madman he was by the first episode and gave Katsuragi the necessary data on Nebula Gas to produce a stable Smash transformation, both of which directly led to the founding of Faust.
• Evil Versus Oblivion: It verges on Oblivion vs. Oblivion given his own goals, but he freely teams up with Team Build in New World: Cross-Z to fight his older brother Killbus, if only out of self-preservation.
• The Evil Prince: Since his brother is stated to be the "King" of the Blood Tribe, it would appear that Evolt has royal blood. It's further alluded to by the fact that the other members of the Blood Tribe we see (besides Killbus) all seem lower-ranked and less powerful than him. And then there's Evolt wanting to kill and usurp his brother.
• Dissonant Serenity: Evolt commonly displays a rather lax, easygoing attitude to both allies and enemies. Perhaps to ease their guard (even if futilely for those in the know), screw with them or to show that he's not worried in the least about potential threats.
• The Faceless: Evolt swaps between several faces over the course of the show, and when he reveals his own it's so alien that it takes a flashback to Evolt on his home planet to confirm that it even is his real face. Even after his identity is revealed, he commonly uses the form of Soichi like an untransformed state.
• Fake Defector: During the fight with Killbus in the Cross-Z V-Cinema, Evolt pretended to betray the heroes and attack Yui in order to get Ryuga angry so his Hazard Level would be raised to the point where he could use the Muscle Galaxy Fullbottle.
• Fatal Flaw:
  • His pride. He always believes that he is holding all the cards or is so much more powerful than everyone else (and is usually true), so he keeps the heroes alive partly as part of his plan and partly so that he can make them suffer. His plans do indeed go without a hitch for most of the series, but once it starts nearing the end stages, he starts finding the heroes harder to fight and his plans delayed more often, and the only way he knows how to deal with the frustration over it is to toy with the heroes more, which just gives them both time and motivation to get stronger and counter his plans.
  • Wrath. Evolt cannot and will not tolerate having his ego bruised and will go to great lengths to make those who do so suffer...but in the process loses his pragmatism and gives his enemies openings to strike back.
  • Overconfidence, by extension of his Pride. Ironically, this means Evolt is actually more dangerous when he's at a disadvantage, as he's more likely to pull out all stops to win, whereas when he's holding all the cards he tends to get cocky with his lead and give his opponents a chance to win.
• Faux Affably Evil: Both before and after The Reveal of his identity, Evolt is a much more casual and friendly antagonist than Night Rogue, though underneath all of it he is a cruel being whose plan involves wiping out all life on earth. It's implied this is a trait he picked up from possessing Soichi Isurugi and emulating his personality. He is also happy to backstab even his own allies, and will even go so far as to reveal information or aid the heroes on occasion, but it is always in service of his own ends.
• The Fighting Narcissist: It eventually becomes apparent that Evolt has an incredibly high opinion of himself as a 'higher organism'. The biggest symptom of this trope is his Berserk Button: he simply can't tolerate having his ego bruised and will go to extreme, spiteful lengths to make those who have done so suffer.
• A Form You Are Comfortable With: After he completes the Evol Trigger, he no longer needs a host body and can shapeshift into anyone. He decides to default to the form of Soichi.
• For the Evulz: While an exact motive for his Omnicidal Maniac ambitions has yet to be stated outright, it is heavily implied that this is at the root of his actions, given that his reaction to Utsumi going insane and becoming MadRogue is one of such great amusement that he reconsiders destroying the Earth.
  • Confirmed and deconstructed as this attitude completely bites him in the ass time and time again. Evolt choosing to indulge his baser instincts over his pragmatism results in him being put through the ringer more often than not. It ends up getting him killed in the long run.
• From a Single Cell: Episode 45 reveals that he can store a part of himself inside his Evol Driver which will eventually regenerate into a full body. Shinobu attempts to delay this by storing the Driver in a special container, but unfortunately, Evolt was smart enough to splinter off another segment which possessed Utsumi, rendering his effort moot. This is how Evolt managed to reappear in Build NEW WORLD: Cross-Z by planting a single cell into Banjo after being finished off by Build's RabbitDragon Vortex Attack Notably, this ability seems unique to him out of the Blood Tribe, as every other member of his species are killed far easier, even the far stronger Killbus. Banjo's Blood Tribe DNA is the only other thing that has this level of regenerative ability, which came from Evolt himself.
• Fusion Dance: Fuses with Ryuga to grant him his Cross-Z Evol form in NEW WORLD: Cross-Z.
• Galactic Conqueror: He laid waste to plenty of planets before coming to Mars.
• Genius Bruiser: Evolt is an intelligent manipulator who plays almost everyone successfully, and an extremely strong alien behemoth who's practically unstoppable once he reaches full power.
• Godhood Seeker: His ultimate goal is to consume enough planets to destroy the universe so he can become a god and remake the universe in his own image.
• Gone Horribly Right: His plan involved making the Riders heroes so that they'd gain strength for him to exploit in his own plans. He succeeded, but didn't count on them becoming powerful enough to actually oppose him and is ultimately killed by them.
• Grand Theft Me: For most of the series, he has been controlling Soichi's body due to his own body being destroyed. Later, he switches to Ryuga (in order to get back his DNA from him) and then Sento (in order to try and take advantage of his higher Hazard Level) before getting a body of his own. However, he later demonstrates the ability to splinter himself off to possess someone else, though doing so leaves him unable to use his full power until he merges back with the splintered part.
• Greater-Scope Villain: For New World: Grease. Keiji Uraga was one of his victims whom he experimented on, which is the reason he's able to recall the events of the Old World and transform into a Rider in the New World.
• Hazy-Feel Turn: Leaves earth after Killbus is destroyed at the end of Cross-Z NEW WORLD, but there is no indication as to if he actually changed or is just waiting until later to destroy Earth.
• Hoist by His Own Petard:
  • He is ultimately killed by the very Riders he created for his plans.
  • His Doomsday Device is turned against him via the white panel and ultimately used to eradicate him from existence.
• Hidden Agenda Villain: Evolt manages to hide why exactly he wants Sento and Banjo to become stronger for most of the show, only making it clear when it is too late to stop him from taking their bodies.
• Hijacked by Ganon: He returns as the true Big Bad of the Kamen Rider City Wars video game of all things, where he's revealed to have brainwashed the game's ostensible villain, Mr. X, to use him to take control of the Crosslink system.
• Humanoid Abomination: Possession by Evolt alters his host's physiology and gives them bizarre powers, to the point that they're stronger than the Blood Stalk suit on their own. There is also the whole 'possessed by an evil, ancient alien entity' thing. Once he becomes complete, he still chooses to appear human, but frequently reminds the audience he's only pretending to be one.
• Humanity Is Infectious: His time among humanity, his frustration at Sento's delays to his plans, and the direct threat to his life that Build Genius represents eventually lead to Evolt switching from performative mimicry to genuine emotions. It is Deconstructed by actually making him an even more dangerous villain, because he can now process emotions like anger and sadism. On top of that, because he can now feel anger he can now raise his Hazard Level and become even stronger. However, it also exacerbates his existing Fatal Flaw by making his anger at Sento sufficient that just killing him won't be enough to satisfy Evolt's need for vengeance, which only gives Sento more time to chip away at Evolt's plans.
• Impaled with Extreme Prejudice: Vernage defeated him in her Last Stand by running him through the Evol Driver with a energy BFS.
• I Need You Stronger: One of Evolt's many goals throughout the show is to raise Sento and Ryuga's Hazard Levels, as well as to raise Sento's technical knowledge of Driver creation to the point where he can repair the Evol Driver.
• In Their Own Image: In a particularly brutal way too. Once he gets the Black Pandora Panel, Evolt plans on systematically devouring every world in the universe to make himself a god, until outer space is completely barren and can thus be shaped to whatever he wants it to be.
• Intrigued by Humanity: A horrifying example. After Utsumi going insane and joining him, he declares humanity to be too interesting to kill off and instead decides to conquer them and then kill them off. How much of this is true and how much is yet another manipulation is up in the air.
• Invincible Villain: Evolt is an extremely powerful entity who outmatches just about everyone at the start of the series, and whenever a Rider does manage to catch up to him, Evolt always has more powers up his sleeve he can unlock to stay on top. He's also a master manipulator who keeps everyone dancing to his tune throughout the series; it's rare for his plans to be set back and even when they do it's never for all that long. And he has the power to split his body up into smaller pieces that he can regenerate from, so even if he is destroyed he can come back. The only reason he doesn't win is because he gets too overconfident with his lead, which gives Team Build a chance to edge out a victory, and even then it takes them smashing him in between two parallel worlds to Ret-Gone him to finally kill him. And in the V-Cinemas, Evolt somehow manages to survive that and get away.
• It Amused Me: After he gets back his full power, he decides that he is too amused by humanity to immediately kill them off. Instead, he decides to conquer Japan and let them destroy themselves through war. He also decides to develop the Lost Bottles to create Lost Smashes because he thinks it would be ironic if he managed to turn the other Kamen Riders into them, which is why he lets them live for now. Of course, considering that this all comes from his own mouth and he already has a track record for being a Consummate Liar, whether or not this is just part of yet another one of his larger plans is up in the air. Later, it becomes clear that while he does enjoy what he's doing, it is ultimately just stalling and smokescreen for a plan to become even more powerful.
• Joker Immunity: Much like Kuroto before him, Evolt proved too popular to stay dead, resulting in him being brought back for the New World V-Cinemas and allowed to get away.
• The Juggernaut: He's absolutely unstoppable once he gets the Black Pandora Panel, which makes him invulnerable against almost all attacks and able to devour planets within seconds.
• Karma Houdini: Despite all the deaths he caused and torment he inflicted on the heroes, Evolt survives the Cross-Z V-Cinema with his life intact and enough power to leave the Earth, an opportunity he immediately decides to take rather than pick another fight with Team Build. He doesn't have the Pandora Box anymore, and doesn't seem to have his world-shattering Black Hole or Fever Flow levels of power anymore either, but otherwise Evolt comes out of the movie with pretty much everything he could have hoped for.
• Karmic Death: Ultimately meets his end at the hands of the person he manipulated for his own ends and psychologically tortured throughout the series along with his son who he abused and manipulated the entire series. To add to the karma, the very weapon he used to cause so much misery, the Pandora Box, is turned against him via the white panel and used as the instrument of his demise.
• Kick the Dog: Once he gets his Black Hole form, he starts doing this a lot more. One of his nastiest ones comes when he kills Kazumi, then struts up to the rest of Team Build to interrupt their grieving and say "Yo" as if nothing happened.
• Knight of Cerebus: Once his true nature as Evolt is revealed, the plot goes from 'merely' the fate of Japan to the fate of the entire planet and eventually the entire universe. He also manages to rack up one of the largest, if not the largest, onscreen body counts in the history of the franchise.
• Lack of Empathy: When Yui questions Banjo why he wasn't able to save her students, Evolt (in Banjo's body) just says that he doesn't give a damn about them.
• Last of His Kind: With the demise of the other three in the movie, Evolt is the last of the Blood Tribe. Subverted in the Kamen Rider Cross-Z V-Cinema where Evolt's older brother Killbus comes to Earth sometime after Evolt's downfall. Played straight again after Killbus bites the dust.
• Lesser of Two Evils: Compared to his brother Killbus, believe it or not. Evolt is a sadistic Planet Eater, but he at least has a sense of self-preservation and can be reasoned with on some level, while Killbus is just Ax-Crazy and wants to destroy everything For the Evulz.
• Light Is Not Good: The Final Stage show gives him one extra final form, colored bright white similar to Build Genius.
• Logical Weakness: The Evol Trigger makes him immensely powerful, but it also acts as his biggest weakness. Damaging it causes it to malfunction, which results in paralyzing Evolt, even in his monster form.
• Luke, I Am Your Father: The alien that infected Ryuga's mother and thus turned him into a Half-Human Hybrid was a piece of Evolt, meaning in essence, Evolt is Ryuga's father. After Ryuga regenerates the DNA needed to transform when Evolt stole it, Evolt outright calls him his 'spawn'.
• Manipulative Bastard: He manages to manipulate pretty much everyone into furthering his goals. For the villains, he takes advantage of their ambition and offers them power in exchange for working with him, and for the heroes, he forces them into situations where they either have to do something that furthers his plans or let innocent people, especially close loved ones, die. The end result is usually Stalk betraying whoever was foolish enough to go along with his plans before moving on to the next Unwitting Pawn, all the while getting closer to killing all life on earth.
• The Man Behind the Man: Night Rogue, Prime Minister Tajimi and Namba all took turns in the lead, but Evolt was lurking behind each of them and manipulating into advancing his goals.
• Master of Disguise: He can use his steam to alter a person's appearance. His helmet has a built-in voice modulator to distort his own identity further. Once he is complete, he is capable of full shapeshifting.
• Meaningful Name/Names to Run Away from Really Fast:
  • "Blood Stalk" is a very fitting name for a hunter like him. It also fits the Evilutionary Biologist traits of Faust, as "foundation bloodstock" is a term referring to animals that are used to create new breeds of their species.
  • The reveal of what he really is also makes it meaningful: Evolt is from a race of Planet Looters called the Blood Tribe. Thus planets or species he comes across can be considered stock for the Blood Tribe.
  • Evolt is a play on evolution and revolt. Evolt's plan involves tricking the heroes into evolving to higher levels, as well as rapidly transitioning through forms himself, and he ultimately revolts against everyone including the last three members of his own race other than himself. The other meaning for revolt is also apt, as he is irredeemably vile and either horrifies or enrages everyone who knows of him.
• Multilayer Façade: He is revealed to be Soichi, and then revealed to actually be an evil spirit from Mars possessing him.
• Necessary Drawback: In spite of his immense power, he does have at least one drawback: he needs all his DNA in order to make full use of his power. If he decides to split off his DNA for whatever reason, the best he can do is use Evol Cobra form. It is still powerful, but not as insanely powerful as Black Hole form.
• Nice Job Fixing It, Villain: Part of his plan involved manipulating the amnesiac Takumi Katsuragi into gathering the Fullbottles for him as Build and helping him train up both his own body and Ryuga's to Hazard Level 5 so that they could be viable hosts to use the Evol Driver with. While his plans works, this also leaves the two strong enough to combat him as well as any other foes that threaten the peace of the world.
• Nigh-Invulnerable: Evolt is nigh impossible to actually kill, as if any piece of him survives, he can regenerate. This is notably unique to him, as none of the other members of the Blood Tribe possess this ability, even his older brother Killbus.
• Nominal Hero: New World: Cross-Z has him working alongside Ryuga and the rest of Team Build to stop his Omnicidal Maniac older brother, but only out of self-preservation. Once his big brother is dead, Evolt leaves Earth after vowing to return and challenge the heroes again some day.
• Obviously Evil: Once he's revealed to be Soichi, Evolt makes no attempts in any of his identities to hide the fact that he is a supervillain.
• Offhand Backhand: Does this to a Touto guard during episode 11 which resulted in the man exploding into Ludicrous Gibs.
• Omnicidal Maniac: His aim is to complete the Pandora Tower, rendering the Earth as ruined and lifeless as Mars, after which he will move on and do it all over again somewhere else, with his ultimate goal being to eventually consume everything in the universe except himself.
• One-Winged Angel: Evolt goes through more of these than a Dragon Ball Z villain. By the end, including Blood Stalk, he has eight forms, each progressively stronger than the last.
• Outside-Genre Foe: Until the reveal, the series had been primarily an After the End story dealing with a Balkanized Japan and trying to stop a Civil War from erupting. Then comes Evolt, an alien invader who sends the plot straight into Cosmic Horror Story territory and whose general character and powers are more in line with a shonen Anime Big Bad than the typical Kamen Rider villain.
• Person of Mass Destruction: Evolt is one of only two villains in Kamen Rider history to be a planet buster level power (the other being N-Daguva-Zeba, who was even with Kuuga's planet busting Super Mode), and has wiped out entire planets by himself. Over the course of the series, we actually see him eat an entire planet with a black hole, as well as Earth's moon.
• Pet the Dog: In an evil sort of way: Blood Stalk is the one to help Gentoku become Kamen Rider Rogue after his torture at Utsumi's hands. He is not at all nice about how he does it, and at one point almost gives up and plans to just have Gentoku put out of his misery.
• Planet Eater: It was initially believed that Evolt was from a race of Planet Looters, but the truth turned out to be far worse. Evolt's primary goal on every planet he visits is to consume its resources and move on to the next at the cost of most of the energy he got to get to the next one. Part of the reason he didn't destroy Earth when he had every chance to was the Black Pandora Panel, which when completed enhances his power enough that not only could he warp to other planets without expending energy at all, he could also consume the entire planet instead of stripping it bare without the need for Pandora's Tower.
• Playing Both Sides: Every side receives some form of aid from Stalk, often right before he betrays them to the next person on his list of employers.
• Poison Is Corrosive: His venom can knock someone out, gradually poison them to death, or instantly liquify their bodies depending on how strong a dose he inflicts. It was originally believed to be a power of the Blood Stark suit, but is eventually revealed to simply be a natural ability of Evolt's he can use in any form.
• Poisonous Person: Evolt is naturally venomous. As it is an extraterrestrial venom, he is the only one who can cure it.
• Power Dyes Your Hair: A side effect for some of those unfortunate to have his DNA. Sento's hair turned completely white when possessed, and in a world where Evolt didn't exist, Ryuga's hair was completely black instead of brown.
• Pragmatic Villainy: He mellows out quite a bit when he returns in New World: Cross-Z. He drops his sadism almost completely and the few times he does taunt Ryuga, it's to make him angry so his Hazard Level will go up. Given he's going up against Killbus and that the entire universe will be destroyed should he win, he doesn't have time to engage in any Kick the Dog behavior. At the end of the movie he chooses to leave Earth on peaceful terms rather than risk another confrontation with Team Build until he's strong enough to come back and face them again.
• Psychopathic Manchild: A high-functioning one, but a lot of Evolt's behavior is done purely for his own amusement, similar to a child doing things out of boredom.
• Rasputinian Death: It took almost the entire second half of the series and a stage show for the Kamen Riders to finally kill him. The final episode had him and Sento fighting each other through all of their forms and wearing each other down before Sento could finally defeat him, and he still survives that in a stageshow, where Sento and Ryuga merge into Cross-Z Build once more and vanquish him allow the merger of the worlds to go through and Ret-Gone him out of existence, and even then he didn't stay gone for good.
• Resurrect the Villain: In New World: Cross-Z, it's Sento of all people who resurrects him after he's been killed, in order to give them a leg up in their fight against Killbus.
• Retcon: the Feverflow/Phantom State form was stated in the show proper to be just another "state of further evolution" and there are no hints that Evolt ever truly was able to access it beforehand (the Lost Bottles were artificial Fullbottles that he originally never created before his arrival on Earth). Yet on New World Cross-Z, a flashback shows that he is able to access it before the events of the film and show, implying it's his original form. The Encyclopedia doesn't seem to acknowledge the Kaijin form as his true self: "With his original power restored, Evolt aims to complete the black Pandora Panel to gain an additional ability: the power to "instantaneously move between planets."
• Ret-Gone: When he was defeated by Build in the finale, the merger of worlds erases him from at least Earth's history. Whether or not it means he is simply already dead and Pandora's Box destroyed without either coming to Earth or he was completely erased from time isn't clear, but as far as the merged Earth is concerned, Evolt never existed. Subverted HARD! as he managed to reappear into the New World in Build NEW WORLD: Cross-Z.
• Same Character, But Different: In NEW WORLD: Cross-Z, once he regenerates Evolt becomes a lot more mellow than he was in the classic series. He's still cunning and diabolical, but lacks any apparent sadism apart from his occasional trolling of Ryuga.
• Sanity Has Advantages: Evolt is extremely manipulative, intelligent, and one of the most powerful villains in the history of the franchise...but he's also a raging malignant narcissist fundamentally incapable of taking the most minute of slights to his ego. Evolt repeatedly delays a certain victory in order to make those who bruised his ego suffer more or sate his sadism, and it bites him in the end. Hard.
• Satanic Archetype: Aside from Cobra being his primary Fullbottle and first Evolbottle and red being his main color motif, he also fits in terms of role, as a manipulator who offers power to the other villains in exchange for doing his bidding only to screw them over in the end while furthering his own plans to kill everyone and bring about The End of the World as We Know It. Adding onto this, two of Evolt's primary vices are his pride and wrath, both of which are the Seven Deadly Sins embodied by Lucifer/Satan.
• Sealed Evil in a Can: Vernage defeated him and crippled his Evol Driver, leaving him weak and unable to escape Mars, stranding him on the planet he destroyed for millions of years until the Mars expedition accidentally gave him a way to escape.
• Sense Freak: It turns out that up until Sento nearly killed him in Genius Form he had never properly experienced emotions, describing his previous happiness, pain, anger and shock as "performative mimicry". After Genius Form forced him to drop his transformation and nearly killed him however he's started to feel emotions himself and he describes it as "the most fun I've ever had".
• Seven Deadly Sins: He embodies all seven to varying degrees.
  • Envy: Evolt is contemptuous of any beings with a similar level of power to him, and becomes furious whenever the heroes come close to being as strong as he is.
  • Gluttony: He's a Planet Eater who becomes stronger by absorbing planets through black holes, with his eventual goal being to devour every planet in the universe.
  • Greed: All Evolt cares about is obtaining more power for himself, even if it means manipulating, experimenting on and disposing of countless other people.
  • Lust: Not explicitly, but to possess Ryuga before he was born he would have had to penetrate his mother's womb, which has some icky implications...
  • Pride: Only cares about himself, and views himself as the most important being in the universe, to the point where his ultimate plan is to wipe out everyone else.
  • Sloth: While he fights the heroes on occasion, he spends most of the series pulling strings from behind the scenes and manipulating others to do his dirty work. Hell, one of the first times we see him he's lounging on a park bench.
  • Wrath: Extremely sadistic and enjoys inflicting as much pain as possible on others, be it physical or psychological, to the point where he even goes as far as dragging out battles so he can revel in his opponents' suffering.
• Slouch of Villainy: Manages to outdo Night Rogue in this regard. His first appearance in episode 4 has him actually lying down on a park bench. In full armor.
• Smug Snake: Pun aside, Evolt is an incredibly accomplished fighter and he knows it. He even catches RabbitTank's Vortex Finish in the palm of his hand, compliments the force of the blow, tosses Sento to the side and then remarks on the kick's Hazard Level without even coming close to losing his cool. The only things that can throw him off his game are Best Matches that he has never seen before, and even those usually only work once. Like most examples of the trope, the cracks in Evolt's master plan begin to form because he believes himself to be smarter than everyone else, and starts toying with his victims when he thinks he's won.
• Smug Super: As Evolt achieves beyond the fourth phase of his powers, he backs it up by knowing that the heroes can't touch him. As Team Build rise and counterattack, it slowly bites him in the rear big time.
• Snakes Are Sinister: A cobra-themed villain who is a part of a terrorist group, who is in reality is an alien invader.
• The Sociopath: Incredibly charismatic and manipulative, something which masks his immense narcissism and lack of empathy for others, who he all views as pawns to torment on a whim.
• Story-Breaker Power: By the time he reaches his ultimate form, Evolt can destroy entire city blocks with the aftershocks of a casual kick and summon giant black holes that consume entire planets. Combined with his ability to instantly warp anywhere he desires in the universe with just a thought, Evolt is effectively one of, if not the most, powerful antagonists in Kamen Rider (his only real contenders are Rosyuo, the Overlord of Darkness, and, according to supporting information, N-Daguva-Zeba). Removing the Macguffin from his chest aside, the only real reason he doesn't just kill everyone immediately is because he finds it more fun to watch them suffer.
• Supervillain Lair: After forming the Pandora Tower, he makes it his base of operations.
• Those Were Only Their Scouts: Subverted. Vernage is shocked only one of his species was able to wipe out Mars, implying this trope, but when other members of his species appear, Evolt is shown to be considerably stronger than any of them (as well as being the only one with an Evol Driver) and they're subservient to him making it clear Evolt is an outlier. Only Kamen Rider Blood is comparable to him, and he requires a mismatch of Build Driver related items to achieve a form on par with the one Evolt naturally has. In addition, by present day, only five of the Blood Tribe are even left.
  • Player straighter when his older brother shows up, and stronger than him even without an Evol Driver.
• The Starscream: Nearly from the moment he shows up, Stalk takes every available opportunity to stab Night Rogue in the back. Rogue eventually catches wise to this behavior, and by episode 10 plans accordingly, not that it helps. If his goals succeed, they will all be dead anyway.
  • He also turns out to be this to his older brother, the Blood Tribe king Killbus. The reason he went on a rampage with Pandora's Box was to obtain the power needed to vanquish his brother.
• The Strategist: Calls himself this for Faust and he is very good at formulating long-term plans.
• Teeth-Clenched Teamwork: He partners up with Banjo in their battle against Killbus. While Evolt is eager to work together, Banjo is (justifiably) distrustful of him.
• Time Abyss: Evolt is at the bare minimum millions of years old and older than life on Earth.
• Token Evil Teammate: For Team Build in New World: Cross-Z. He readily helps them to stop Killbus and is friendly to them all the way, but still makes no attempts to hide the fact that he's evil or play down any of his past actions, at one point even nonchalantly admitting to be the one who killed Ryuga's parents.
• Too Kinky to Torture: He seems to enjoy the beatings he takes from from both Build and Cross-Z, treating them as demonstrations of their increasing Hazard Levels. Subverted once he receives a beating that actually hinders his plans, which he absolutely despises.
• Training from Hell: The Blood Stalk suit was originally created by Takumi Katsuragi to act as a designated rival to those using his Kamen Rider system so that their need to surpass Stalk's initially superior capabilities would drive them to increase their Hazard Levels. In his own twisted way, the current wielder of the suit is fulfilling the technology's purpose while performing a little terrorism on the side.
• Troll: Evolt just loves doing things to screw with Sento and the other Riders.
• Unseen Evil: For most of the series, Evolt has no physical form of his own and even once he is complete what he looks like under the armor is hidden. This is despite being one of the most vile and powerful villains in the entire franchise. He only gains an actual face at the end of the series, and unlike most examples more than lives up to it with how powerful and horrifying he is.
• Villain Ball: Evolt could have won if he had just killed the other Kamen Riders as soon as he obtained the Black Pandora Panel, but he chose to keep them alive so he could watch them wallow in despair for longer. This provides an opportunity for Rogue to damage his Evol Trigger, buying Sento and Ryuga time to force the Panel out of him.
• Villain Respect: Towards the whole of humanity by NEW WORLD: Cross-Z. He even mocks Killbus for underestimating them.
• Villainous Breakdown: Sento's actions in episode 36 are the first thing to ever make Stalk legitimately lose his temper when there is no one around for him to be fooling or manipulating by pretending to be upset. He gets his plans back on track in short order, but it's the first time something happens that he was in no way prepared for, and he doesn't take it well.
  • A second one in episode 41 after he is defeated by Build Genius Form and is enraged that a "lower lifeform" has prevented his plans from succeeding various times.
  • And again in episode 45. This time the heroes manage to deal him a decisive defeat that actually sets back his plan right when he could have won. This, combined with the fact that his moves are now limited by everyone knowing his agenda has him seething with rage.
  • He gets an absolutely beautiful one in episode 48 as Ryuga carries him into the void between realities to finish fusing them into a world where the Skywall never existed, fruitlessly pounding his fists against Cross-Z Magma and shouting for him to stop. It continues into the episode after, with Evolt furious beyond measure that he's been foiled by the fake hero that he created. By the end of 49, he's still convinced he can win despite his power literally being hacked down and Sento delivering the trademark Rider Kick to finish him off, yelling there is no way he can lose until he is ultimately vaporized.
• Voluntary Shapeshifting: Upon becoming whole, Evolt can assume any form he chooses.
• Walking Spoiler: His identity as Soichi Isurugi is this, and The Reveal that he is another being altogether possessing Soichi is even more this.
• We Will Meet Again: The events of New World Cross-Z allow him to restore a partial strength monster form. He decides that he is going to leave Earth for a while but will return once he is fully recovered. The nigh inconceivable horror of this casually thrown out statement is slightly mitigated by the fact that Banjo now has access to the most powerful form among the Build riders.
• Wham Line: "What are you trying to do?!"
• White Hair, Black Heart: During the time he was possessing Sento, he sports white hair, showing the audience who is in charge of the body.
• Why Don't You Just Shoot Him?: Early on, he leaves the heroes alive because needs them for his plans to regain his full power. Once he does regain his full power, he decides that instead of just up and destroying Earth, he can instead keep using the heroes for another plan to become even more powerful, being too convinced that the heroes won't be able to stop him. However, the heroes end managing to steadily close the power gap between them and figure out his plans, making them more and more of a nuisance to him until they end up managing to set back his plan right when he pretty much had completely won. It doesn't help that he's so petty that instead of straight-up killing Sento (the current biggest roadblock to his plans), he wants to kill Sento last, so that he watch as everything he loves is destroyed.
• Wild Card: Most of the time, Stalk acts completely on his own initiative even if his actions go at complete odds with the goals of his alleged allies. He isjust charming enough, and his allies are all blinded enough by their ambitions and the tastes of power he offers them, that none of them quite realize what he's doing until it's too late. Given his endgame is "kill literally everyone", it is safe to say he's on no one's side.
• World's Strongest Man: Evolt is, by far, the most powerful character in the main Kamen Rider Build series and one of the most powerful Riders in the franchise (among the riders his only direct competitors are Man of the Beginning Gaim, Post Series-Kamen Rider Decade, Ultimate Kuuga, Killbus and Cross-ZEvol. He's only unambiguously surpassed by Ohma Zi-O, who combines the powers of all Hesei riders and forms including Evol's). His Black Hole Form is capable of defeating any character in the series and allows him to wipe cities off the face of the planet in moments. Initially only Sento with his Genius Form is capable of matching him but he quickly surpasses him by tapping into the Evol Driver's ability to use emotions for strength, becoming so powerful that Genius and Cross-Z Magma, who by the end of the series are comparative equals AND both stronger than Black Hole was initially, can just about slow him down for a few moments. His transformation after incorporating the Black Pandora Panel into himself is borderline invincible, capable of destroying planets in moments. It took the combined might of the other four Riders to fight him off the first time. The second time they needed to exploit a weakness from his Evol Trigger to keep him still and then send him to a pocket dimension to weaken him and it still took the deaths of two Riders and Ryuga sabotaging him from the inside to allow Sento to best him. Even then he manages to come back from THAT and recover his full power yet again. In the end the only way Evolt leaves is in his own terms. Essentially deciding that he doesn't want to destroy the Earth anymore.
• Would Hurt a Child: Stalk opts to demonstrate his Steam Blade's ability to create Smash on the go by using it on a boy no older than ten. And of course, there is the fact that children are among the humans living on the planet that he intends to destroy for fun.
• Xanatos Speed Chess: The creation of the Sky Walls was actually not according to Stalk's plan, so he writes many of his schemes on the fly.
  • In Episode 34, he pulls a Poison and Cure Gambit on the heroes, offering Sento's life in exchange for the Pandora Box and all the remaining Fullbottles. However, this enrages Banjo, who fights so hard that he raises his Hazard Level to 5...which allows Evolt to steal his body, giving him even more than he wanted in the first place.
  • In Episode 37, he takes over Sento's body, but it can't complete the Evol Trigger even though it is more powerful. Ryuga has gotten his ability to transform back and is even more powerful than before. However, just as he, Kazumi and Gentoku are about to finish him with a triple Rider Kick, he uses the Evol Trigger to absorb the energy of their attack, allowing him to complete it.
• You Have Outlived Your Usefulness:
  • His dealings with Faust, Hokuto, and Namba Industries was all in service of a delicate and lengthy plot to boost Banjo's Hazard Level so he could perform a Fusion Dance with him and regain all the DNA the other half of his being held. That accomplished, he has zero qualms about murdering Banjo otherwise.
  • The moment he's complete and they're nothing more than an amusing distraction, Namba Industries is swiftly and brutally annihilated.
• You Killed My Father: He kills both Gentoku and Sento's dads. The Cross-Z V-Cinema also reveals he was responsible for causing the deaths of Banjo's parents too.

Tropes exclusive to him as Blood Stalk

• Battle Aura: When unleashing his full power, Stalk begins to emit an aura resembling blood-red flames surrounding his body.
• Chest Insignia: He has a green cobra on his chest.
• Finishing Move: The Transteam Gun gives him several, such as the Steam Break.
• Hell-Bent for Leather: Like Night Rogue, his suit features quite a lot of leather from the waist down.
• Made of Iron: Despite the Transteam Gun allegedly setting its user to a fixed Hazard Level, essentially nothing can seriously hurt Stalk unless it takes him by surprise. Even strikes from the berserk Hazard Trigger-enhanced Build only knock Stalk around without actually causing injury to him. He often uses these beatings to read his opponent's Hazard Level.
  • This is by design, both in the function of the Transteam System and in Stalk's overall plan. Katsuragi Takumi stated in his notes that the main purpose of the Transteam System is to provide an effective training target for Kamen Riders to raise their Hazard Level, so in exchange for a fixed Hazard Level, Transteam forms are durable enough to take a lot of punishment from an opponent continually growing in strength. Since Stalk's plan revolves around Sento and Banjou increasing their Hazard Levels, this form is perfect for him to fight them with.
• The Man in Front of the Man: As Blood Stalk, Evolt lets each of the other villains take turns as the major threat while he plays their dragon, all the while advancing his own goals instead of theirs. The moment he's complete, he ends the facade brutally and effectively.
• Mythology Gag: Like many recurring instances of the Bat/Spider/Cobra trio, he's one to Cobra Man, the first Shocker monster from the original series to be revived.
• Red and Black and Evil All Over: Wears a blood-red suit covered with black pieces of metal.
• Reverse Grip: While Stalk prefers using the Steam Blade and Transteam Gun in their combined form, when he uses the Steam Blade alone he wields it this way.
• Scarf of Asskicking: He wears a muffler made from car mufflers.
• Sinister Shades: Decked out with a green visor. Like Night Rogue above, it is a second green king cobra, though the eyes are much more obvious. The cobra's tail comes up on the left, giving Blood Stalk mismatched horns.
• Snakes Are Sinister: The Blood Stalk suit has the power to conjure giant cobras that Stalk can command. They're quite multipurpose, being able to carry people in their stomachs or to attack for Stalk. They're also directly as powerful as he desires them to be, so he can create ones strong enough to battle against the likes of Cross-Z Magma or RabbitRabbit.
• Sword and Gun: Like Night Rogue he uses the Transteam Gun and the Steam Blade in combat.
• Willfully Weak: As Stalk continues to no-sell attacks from forms that it's increasingly ludicrous for him to match on even ground with nothing but the Transteam System, it becomes more and more obvious that he's holding back an enormous amount of power while pretending to just be an ordinary human. It takes the likes of RabbitRabbit and Cross-Z Magma for Stalk to finally stop holding back.

Tropes exclusive to him as Kamen Rider Evol

Are you Ready? Cobra! Cobra! Evol Cobra! Fuhahahahahahahaha!

Are you Ready? Dragon! Dragon! Evol Dragon! Fuhahahahahahahaha!

Are you Ready? Rabbit! Rabbit! Evol Rabbit! Fuhahahahahahahaha!

Are you Ready? Black Hole! Black Hole! Black Hole! Revolution! Fuhahahahahahahaha!

• Achilles' Heel: The Black Hole Trigger may give him access to outrageous amounts of power, but if it's hit hard enough to get jammed, Evol ends up paralyzed. This becomes vital in fighting him when his power reaches levels the rest of the cast can't hope to match.
• Animated Armor: A variation. According to the data found about the Evol Driver, Kamen Rider Evol isn't so much a suit as much as his host physically transforming into Evolt.
• Bling of War: Evol's suit is drastically bulkier than every other Rider costume and dripping with gold.
• Clipped-Wing Angel: In a very unusual sort of way, Evol's Fever Flow form is this. While it makes him even stronger compared to the Riders than he was before, he was already stronger than all of them combined, so being even stronger than that makes no real difference, and unbeknownst to Evolt, Fever Flow also makes him vulnerable to the White Pandora Panel.
• "Do It Yourself" Theme Tune: Evolt provides the voice of his own Driver, complete with a mocking "Ciao!" at the end of his finishers. Justified, since it technically is a part of his Bizarre Alien Biology.
• Evil Counterpart: To both Build and Cross-Z, complete with forms designed to be knockoffs of each of them. Like Build, Evol has a red and blue color motif underneath all the gold, and utilizes Best Matches, but he only matches everything against Rider System. Like Cross-Z, he's the fusion of an alien with a human, but his alien half dominates his human half.
  • Evol also has the ability to use stolen data on Sento's equipment to create copies for his own use.
  • Evol's forms are unique among Riders since unlike Build's which provide Multiform Balance and specific abilities, Evol's forms are clear power boosts and they way he obtains them are more akin to something out of a shonen battle manga Big Bad's transformations.
• Evil Laugh: His belt performs a psychotic one at the end of his transformations. All of them.
• Finishing Move: Like Build's Vortex Finish, Evol can turn the crank on his belt a second time to perform an Evoltech Finish:
  • Cobra Form (Phase 1): Evol forms a star map underneath his foot before absorbing it into his leg and delivering a Rider Kick.
  • Dragon Form (Phase 2): Evol coats his hand in dark blue flames before delivering a punch that projects an energy Chinese Dragon upon impact.
  • Rabbit Form (Phase 3): Either a punch covered in flames and purple energy that sends the target flying, or a roundhouse kick covered in red and orange energy that generates an energy star map upon impact.
  • Black Hole Form (Phase 4): Evol delivers the Black Hole Finish, a powerful flying kick to the enemy, sending them into a black hole which kills them after a period of time.
    • Alternatively, Evol can summon a massive black hole in the air, which is capable of consuming entire buildings.
  • Since he retains the Transteam Gun, he can use its Steam Attack or Steam Shot.
• Flash Step: Despite the massive bulk of the suit, Evol is so fast that he even leaves afterimages when he moves.
• Four Is Death: His most powerful form, Black Hole, is his Phase 4. It gives him the power to destroy worlds.
• Fusion Dance: In New World Cross-Z, he merges with Banjo to create Cross-ZEvol.
• Meaningful Name: Evol is love spelled backwards. This fits him, as Evol effectively fights for the polar opposite of the other Riders: instead of love and peace, Evol fights for selfishness and sadism by causing conflict. The way it's pronounced also sounds like 'Evil,' which obviously fits him.
• Multiform Balance:
  • Jack of All Stats: Cobra Form.
  • Mighty Glacier: Dragon Form.
  • Lightning Bruiser: Rabbit Form.
  • Super Mode: Black Hole Form.
• Obviously Evil: As if his appearance didn't do a good enough job conveying he's evil, his belt gives an Evil Laugh at the end of his transformation. He is not exactly subtle about the fact he's a supervillain.
• Secondary Color Nemesis: Inverted. All of his Rider forms are colored red, blue, and yellow, but is the Big Bad out of the entire series.
• Psychoactive Powers: His first clash with Sento's Genius form reduces the power of his Black Hole phase, but gives Evolt the capacity to experience genuine emotions, allowing him to gradually raise his formerly capped Hazard Levels.
• Sdrawkcab Name: His Rider name is love spelled backwards (it's even stated as such in his theme song) fitting since he's the antithesis to the rider's beliefs of fighting for LOVE and peace.
• Slasher Smile: Both Cobra and Black Hole Form have wide, creepy grins etched into their faces.
• Spell My Name With An S: Kamen Rider Evol his true name, Evolt, with a letter knocked off. However, this does make his Rider name an inverted "Love", one of the virtues Sento professes to.
• Strong and Skilled: Unlike the previous antagonist Masamune Dan, Evolt is not reliant on the overwhelming power of his transformations and can fight competently against any Rider with any of his weaker forms. While possessing Utsumi, he managed to fight far more effectively as Mad Rogue than Utsumi himself could and was capable of killing Utsumi with his weakest form EvolCobra despite the fact that Utsumi also wielded an Evol Driver. Unlike Masamune, Evol has a properly honed fighting style that compliments his overwhelming power, which enables him to fight and hold the upper hand against Sento in his Genius Form. By contrast, Masamune only held the upper hand as Kamen Rider Cronus due to his ability to stop time and was effortlessly beaten by Emu once he gained access to his Hyper Muteki Form.
• Super Prototype: The Rider System was derived from the wrecked components of his Evol Driver, although Stalk never intended for the offshoots to surpass the original, as he just needed them to condition Banjo to reunite with him.
• Unrealistic Black Hole: Black Hole Form, true to its name, utilizes in creating miniature black holes to trap his opponents. He also uses black holes for his transformation sequence and to teleport from place to place. He also replaces Stalk's poison with the ability to simply disintegrate anything he touches. He can even makes larger ones to destroy structures at will.