Pyrewild Shaman [The List]

Bloodrush — 1R, Discard Pyrewild Shaman: Target attacking creature gets +3/+1 until end of turn.
Whenever one or more creatures you control deal combat damage to a player, if Pyrewild Shaman is in your graveyard, you may pay 3. If you do, return Pyrewild Shaman to your hand.