Vulpine Vengeance

Fox creatures you control get +3/+3 and trample until end of turn.
At the beginning of each end step, if two or more Fox creatures you control died this turn, you may pay {g}{w}. If you do, return Vulpine Vengeance from your graveyard to your hand.
"They avenge their fallen, and they will gladly do it again."
- Silvus of the Wilds -