Siren of the Fanged Coast

Siren of the Fanged Coast

Creature - Siren | Power/Toughness: 1 / 1 (CMC 5)
Flying
Tribute 3 (As this creature enters the battlefield, an opponent of your choice may put three +1/+1 counters on it.)
When Siren of the Fanged Coast enters the battlefield, if tribute wasn't paid, gain control of target creature.