Wither

Flying, Trifurcation (Whenever Wither attacks,
it attacks as if it were three separate creatures)
Whenever Wither deals damage to an opponent,
they discard a card and gain a poison counter.
Sacrifice a creature - Wither deals damage equal
to that creatures base power to any target. You gain
health equal to that creature's base toughness.
Opponents can't gain health.