Killer Croc

Killer Croc is a supervillain from Gotham City well known for his monstrous crocodile appearance. He is one of Arkham Asylum's most dangerous inmates and also one of Batman's most fearsome foes.

Super powers

 * Regressive Atavism: Killer Croc is afflicted with what seems to be some form of regressive atavism, meaning he has inherited some of the traits of ancestral species of the human race. Over time the primal reptilian part of his brain gains more control of his psyche.
 * Regenerative Healing Factor: He has superhuman regenerative powers, able to heal even lost limbs.
 * Armored Skin: His skin has hardened to the point where it is invulnerable to most forms of abrasion and even high caliber weapons fired from a distance.
 * Superhuman Strength: He has grown so physically powerful and quick over the years that Batman has had to resort to planting explosive devices on Croc's chest to knock him unconscious. He has also been able to rip a large bank vault door right off its hinges with ease.
 * Superhuman Speed
 * Superhuman Agility
 * Superhuman Reflexes
 * Enhanced Senses
 * Claws
 * Fangs

Appearance
DC Super Friends
 * Heroes vs. Villains (storybook)