Amalgam

Amalgam (アマルガム, Amarugamu) is a term used to refer to entities whom are fusions of two or more souls, something possible through different circumstances and situations. Amalgam are typically very powerful due to the fact they two people fused, which would logically dictate their powers also fuse together, but are also rare in numbers.

Trivia

 * The concept of the Amalgam is derived and inspired from various media, primarily Dragon Ball Z and its Fusion Dance, as well as YuGiOh and its Fusion Monsters.