Pyrewild Shaman (2XM) from Double Masters, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Lucas Graciano
• Card Text:
  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.