Aetherstorm Roc (Ripple Foil) [Modern Horizons 3 Commander]

Set: Modern Horizons 3 Commander Type: Creature — Bird Rarity: Rare Cost: {2}{W}{W} FlyingWhenever Aetherstorm Roc or another creature enters the battlefield under your control, you get E (an energy counter).Whenever Aetherstorm Roc attacks, you may pay EE. IF you do, put a +1/+1 counter on it and tap up to one target creature defending player controls.