Hydra (X)

Hydra appeared in 1974 TV series called Kamen Rider X. Hydra (ヒュドラ Hyudora) is a Hydra-themed eel monster of G.O.D.. He was destroyed by X's X Kick.

Arsenals
He could swim, liquefy his body, teleport, reattach his head if decapitated, equipped with a Chinese sword, release fog from his mouth, and could mind control lizards.