I think either Gradient or Hd Missingno Style could work for the role.

Description: Molt lol: This Character is called Gradient, don't use without my permission. (Gradient: HP: ? Attack: 120 Defence: 40 M.Attack: 140 M.Defence: 50 Stamina: 500/500) (Armor[s]: Black Jacket, Magic Barrier) (A humanoid creature Created by a Virus.)