Blade-Tooth

Blade-Tooth is the long-range Transformation Quirk used by Moonfish. It debuts in Chapter 78 and reaches the anime in Episode 43. Despite the Transformation classification, its reach makes it behave far more like a ranged weapon than a simple change of the body.

The user's teeth enlarge and reform into sharpened incisors, and neither size nor shape stays fixed. Length and direction both answer to the wielder's will. The resulting razors cut through Shoto Todoroki's ice, though enough force will shatter them.

Moonfish is the only known holder, and he treats the Quirk as transport and armament at once, striking targets he never has to approach while raising his own mobility. He floods opponents with torrents of teeth to overwhelm them and collapse their defenses, the blades quick enough and long enough to impale a foe from well across a gap. Long practice has made him fluent, using the fangs as a spare set of limbs. A straitjacket does nothing to defuse him: his command of Blade-Tooth lets him hang suspended in the air and travel by teeth alone, which keeps him lethal even in restraints.