Sokhi Of Martoum, Altered

+1: Sacrifice a nontoken artifact or enchantment, then create a 5/5 Black Mah-Lych token with lifelink
0: Prevent all combat damage that would be dealt to another planeswalker you control. Activate this ability at instant speed.
-8: Destroy all permanents, then you get an emblem that says "You may cast spells from your graveyard. They cost 1 less to cast"