My Hero Academia takes place in a world where almost everyone has some kind of special power, some unique quirk that sets them apart from everyone else. Some of these quirks are powerful and useful, giving birth to the rise of heroes, and sometimes quirks are just...looking like a dog-man. There are plenty of strange and interesting quirks on the hero side: explosive sweat, tape elbows, Frog™.
But some of the weirdest and most grotesque quirks belong to villains. These are people who, for one reason or another, have turned away from the rest of society and the typical hero-worship culture. For whatever reason, they don't fit. And a lot of the time their quirks reflect that. So we're going to be taking a look as some of the strangest, gnarliest, most unique quirks used by villains.
10 Warp Gate
Kurogiri's quirk is rare in the world of MHA, which makes him a valuable asset to the League of Villains. However, teleportation superpowers aren't unheard of in fiction and so, despite being very powerful, he doesn't rank very highly on this list.
What's interesting about his ability is that it seems to have turned his entire body into black smoke at all times, the same way other individuals always look like cats or lizards. Yet he still somehow manages to wear a suit. He can manipulate the fog of his body to create warp gates, and whatever passes through them can be dropped off at any location he's already aware of.
Twice not only has the ability to create clones of himself, but he can create doubles of anything he touches, living or dead. He has to memorize the characteristics and even the measurements (he keeps measuring tape in his wristbands) of a target to create an accurate replica, but once he does they're virtually indistinguishable from the real thing.
Some characters have hypothesized that, by using his quirk, Twice would be able to topple entire countries. There's only one limitation; he can't control his clones and they have wills of their own. For some time he was hesitant to create clones of himself because once they all killed each other fighting for dominance.
Shigaraki is the leader of the League of Villains and protege to major antagonist All For One. His goals include destroying society as it currently exists and remaking it according to his sense of justice. This fits with his quirk, called Decay, which allows him to disintegrate anything he touches.
The effect can spread throughout the victim's body, killing them, unless the affected body part is amputated. Unfortunately, Shigaraki doesn't have complete control of his quirk. Anything he touches with all five fingers will decay, whether he meant to activate the power or not.
Overhaul's quirk is very similar to Shigaraki's, except that Overhaul also has the ability to reassemble the things he takes apart. This means that with a touch, he can unmake a person or he can heal their wounds.
His ability is extremely powerful, essentially giving him complete control of his surroundings and allowing him to shape battlefields to his advantage. His ability to reassemble the human body even lets him merge his own body with someone else's, going so far as to give him control over another person's quirk.
Toga's quirk allows her to assume the form of any other person, even including their voice. However, she has to have consumed some of the person's blood in order to do so. The more of their blood she drinks, the longer she's able to remain in their form. She is a skilled actor as well, able to flawlessly imitate people well enough to maintain cover for days without others catching on.
She has an odd, warped perception of friendship and love, claiming that it's natural to love someone so much you want to become them. This even affects her power, as when she experiences an intense desire to become a person, she can even replicate their quirk.
The Hero Killer: Stain is one of the most dangerous villains to rise since All Might's emergence onto the hero scene. He's killed or permanently wounded over 30 Pro Heroes through his intense martial arts prowess, force of will, and clever use of his quirk. Bloodcurdle allows Stain to immobilize an enemy after ingesting a sample of their blood (always blood with these guys...) for up to eight minutes.
The quirk itself isn't overly powerful and has restrictive characteristics for its use, but combined with Stain's other talents it proves as more than a match for a large number of otherwise formidable heroes.
Formerly a part of the League of Villains and part of the team that attacked the Forest Training Camp, Magne's quirk allows her to magnetize other people as long as they're within a 4.5-meter radius around her. She's able to magnetize a person's entire body or just certain parts and can use it to partially control the person's movement.
Apparently the magnetism varies depending on the person's sex: men are polarized south and woman are polarized north. The magnetism is shown to be quite powerful, as when she uses it on two people of the same gender, the repulsion effect causes them to fly apart at extreme speeds.
Mr. Compress has a very specific quirk that allows him to compress anything within a certain range into a small, lightweight marble. This includes not only the target but sometimes whatever was around them as well, like the earth underneath them. The quirk is ideal for theft or kidnapping, as it renders the target powerless and easy to conceal and transport.
He can even compress only a small part of the target's body, leaving the rest untouched, thereby brutally mutilating them. He can release all his marbles by snapping his fingers, like a magic trick. It's fitting because (as you might have guessed from his style), he is a former stage magician.
Congratulations, Moonfish! On a list already containing more than one instance of blood-drinking, his quirk is easily the grossest to behold. It's really exactly what it sounds like. He has the ability to extend and manipulate his teeth into a series of powerful blades, quickly creating a tangled and deadly web.
As unpleasant as it is, his quirk is obviously quite powerful as he was nearly able to defeat the combined forces of Todoroki and Bakugo, two of the strongest students in Class 1-A. It was only the full, unrestrained might of Tokoyami's Dark Shadow that took him down.
1 All For One
Finally, perhaps the most unique and most powerful quirk possessed by any villain in the series is All For One. It's a quirk that so thoroughly defines its bearer that he's taken it as his name. All For One's quirk lets him steal quirks from other people and use them as though they were his own.
He can also forcibly activate the quirks of others and he can grant stolen quirks to other people. This is, in fact, the origin of the quirk One For All. It was created when One For All gave a power stockpiling quirk to his younger brother, which combined with his existing quirk's, whose only power was that it could be based on to another.