Shrike Harpy

Shrike Harpy

Creature - Harpy | Power/Toughness: 2 / 2 (CMC 5)
Flying
Tribute 2 (As this creature enters the battlefield, an opponent of your choice may put two +1/+1 counters on it.)
When Shrike Harpy enters the battlefield, if tribute wasn't paid, target opponent sacrifices a creature.