Plutomas, The Powerful

When Plutomas, The Powerful enters the battlefield each player sacrifices a creature. You may then chose a creature spell from any player's graveyard and Exile it under Plutomas.
{b}, Pay the converted mana cost of exiled creature: It enters the battlefield tapped and under your control.
{u/b}, {u/b}, {x}: Destroy target creature with converted mana cost X
Whenever a creature you control dies, Plutomas, The Powerful becomes a 5/5 Legendary Creature — Demon God until end of turn.