Gunther, Nightfall Terror

+1: You may search your library for a land card. If you do, put it onto the battlefield tapped, then shuffle your library. Gain 2 life
-1: Prevent all damage that would be dealt to Gunther, Nightfall Terror until your next turn.
-5: Sacrifice X creatures. Then return X creatures from your graveyard to the battlefield under your control. They gain haste until end of turn.