Cottonmouth

Cottonmouth is a Marvel Comics character that appeared in Marvel Disk Wars: The Avengers, and will appear in Luke Cage, played by Mahershala Ali. He is a crime boss who implanted himself with cybernetic limbs that give him superhuman strength, invulnerability, and sharp metal teeth that can cut through anything, which he uses as a supervillain. He has a wide variety of poisons and chemicals at his disposal.