Alaeryu, Smiles at Trees

+2: Search your library and graveyard for a land card and put it into your hand. You may play an additional land this turn.
-2: Until end of turn, target creature gains trample and gets +X/+X, where X is the number of lands you control.
-10: Sacrifice all your lands, then return all lands from your graveyard to the battlefield. Alaeryu can be your commander.