Kyanos, Endarkener

0: Sacrifice a creature, Kyanos, Endarkener gains loyalty equal to its Power Plus its toughness
-8: exile all creature cards from your graveyard, place X */* Endarkened tokens onto the battlefield their P/T are equal to the no. of cards in exile
-20: all permanents loose Indestructible, destroy all permanents on the battlefield, all cards in exile are placed onto the battlefield