Ashiok, Planebound Acquirer

Whenever a player draws a card besides the first each turn, that player discards a card and puts the top card of their library into their graveyard.
{5}{u}{b}, Sacrifice Ashiok, Planebound Acquirer: Until end of turn, whenever a card is put into a graveyard from anywhere, you may gain control of a nonland permanent with the same converted mana cost as that card.
"I will rule the plane that I will die on.