Jamba, Grassland King

+1: Search your library for a Plains card, reveal it, and put it into your hand. Then shuffle your library.
0: If a plains entered the battlefield under your control this turn, Jamba, Grassland King gains indestructible until end of turn.
-7: Creatures you control get +X/+X and lifelink until end of turn, where X is the number of plains you control.