Bloodcurdler

Flying
At the beginning of your upkeep, mill a card.
Threshold — As long as there are seven or more cards in your graveyard, this creature gets +1/+1 and has "At the beginning of your end step, exile two cards from your graveyard."

Vuela.
Al comienzo de tu mantenimiento, pon la carta de la parte superior de tu biblioteca en tu cementerio.
Umbral El Hielasangre obtiene +1/+1 y tiene: "Al final de tu turno, remueve del juego dos cartas de tu cementerio". (Tienes umbral mientras haya siete o más cartas en tu cementerio.)