Cloudthresher

Flash
Reach
When this creature enters, it deals 2 damage to each creature with flying and each player.
Evoke {2}{G}{G} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

Commander Anthology

Flash
Reach
When Cloudthresher enters the battlefield, it deals 2 damage to each creature with flying and each player.
Evoke {2}{G}{G} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Duel Decks: Nissa vs. Ob Nixilis

Commander 2015

Lorwyn

Flash
Reach (This can block creatures with flying.)
When Cloudthresher comes into play, it deals 2 damage to each creature with flying and each player.
Evoke {2}{G}{G} (You may play this spell for its evoke cost. If you do, it's sacrificed when it comes into play.)

If you cast this card for its evoke cost, you may put the sacrifice trigger and the regular enters-the-battlefield trigger on the stack in either order. The one put on the stack last will resolve first.