Clavicus Vile

Indestructible
As Clavicus Vile enters the battlefield, choose Grave pact or Blood pact.
Grave pact - Whenever a creature an opponent controls dies, return target creature card from your graveyard to your hand and you lose 2 life.
Blood pact - Whenever a creature you control dies, each other player sacrifices a creature and
you lose 2 life.