Joker

Joker is a Homunculus that Vitaly created to match Liza and to kill her as revenge against Little Garden, but he was put alseep due the amount of power required to sustain himself. He was killed by Liza who was summoned by Karen.

Appearance
Joker appears to be a young man dressed in a hoodie that covers his face and eyes revealing nothing but his golden eyes.

Personality
He has a strong resentment towards the world for creating him and desires the power of Liza in order to destroy everything.

Powers and Abilities
Hundred and Variable Stone Eating: In order to sustain himself, Joker has to eat either Hundreds or Variable Stones.

Transformation: Joker can summon and transform a part of himself into that of a weapon without a Hundred, as well as turn himself into a savage.

Enhanced Physical Condition: He has enhanced physical abilities above that of a human, but it can't compare to that of Liza.

Regeneration: He is able to heal his wounds similar to that of a Regenerator Savage.

Trivia

 * Joker is another name for Trump Card in other games.