Smothering Abomination | Creature | Eldrazi | Devoid (This card has no color.)
Flying
At the beginning of your upkeep, sacrifice a creature.
Whenever you sacrifice a creature, draw a card. | Aleksi Briclot
Dust Stalker | Creature | Eldrazi | Devoid (This card has no color.)
Haste
At the beginning of each end step, if you control no other colorless creatures, return Dust Stalker to its owner's hand. | Clint Cearley