Pharika, Omen of Plagues

+1: Create a 1/1 black and green snake with deathtouch, sacrifice it at the beginning of the next end step unless you pay 1 life
-3: Destroy target artifact creature or enchantment, you may search your library for a land, put it onto the battlefield tapped
-7: Destroy all creatures your opponents you control, creatures you control with deathtouch gain lifelink as long as Pharika is on the battlefield