Opacus

Opacus is the former dark lord of antarctica and the creator of the shadow amulet.

Background
He was born in the kingdom of fire many many years ago.As a child,he bullied the other children and was the unnoficial leader of his village.As he grew up,he learned of the elemental amulets.He lusted for them,he tried to get at least ONE.Then He gave up.But he deceived the keepers.Inside the fires of Melter Mountain,He poured his cruelty and malice into making the amulet of shadow.