Nissa, Heart of Zendikar

+1: Search your library for a basic land card, and put that card onto the battlefield tapped. Then shuffle your library.
-3: Until your next end step, target creature gets +2/+1 and gains trample.
-7: Target land becomes a 1/1 Elemental creature with +X/+X, where X is the number of basic lands you control. It's still a land.