Frozen Horde

Frozen Horde's power and toughness are
equal to the number of creature in your graveyard.
Pay 2 life, exile 2 creatures from your graveyard: Frozen Horde gains indestructible untill end of turn.
If a creature delt damage by Frozen Horde would die put it on the battlefield under your control. It is now a zombie in addition to it's other types.