Reverberate [Magic 2012] Halfling Citizen for each creature you control

for each creature you control with power greater than that creature's base power

Bird creatures get +1/+1 for each feather counter on Soulcatchers' Aerie

Then they put all cards exiled with Possibility Storm on the bottom of their library in a random order

"Returne from whence ye came

Set: Outlaws of Thunder Junction Type: Creature — Rhino Warrior Rarity: Mythic Cost: {3}{G}{G} Reach

Reverberate [Magic 2012] Halfling Citizen for each creature you controlSet: Magic 2012 Type: Instant Rarity: Rare Cost: {R}{R} Copy target instant or sorcery spell. You may choose new targets for the copy. For every action, there is a swifter and more violent reaction.