Consuming Aberration

Consuming Aberration
{3}{U}{B}

Creature - Horror | Power/Toughness: * / * (CMC 5)
Consuming Aberration's power and toughness are each equal to the number of cards in your opponents' graveyards.
Whenever you cast a spell, each opponent reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard.