Alatreon, The Unstable

Flying
{3}, Sacrifice a basic land:
Plains- Exile target creature. Its owner gains life equal to its toughness.
Island- Return target creature to the top of its owner's library.
Swamp- Each opponent discards two cards.
Mountain- Each opponent takes four damage.
Forrest- Target creature gets +4/+4 and gains trample until end of turn.