Mana Cost: (CMC: 4)

Card Type: Creature — Bird
Power/Toughness: 3/3

Rules Text:
Flying
Whenever Aetherstorm Roc or another creature enters the battlefield under your control, you get (an energy counter).
Whenever Aetherstorm Roc attacks, you may pay . If you do, put a +1/+1 counter on it and tap up to one target creature defending player controls.