Spirit Flare (TOR) from Torment, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: rk post
• Card Text:
  Tap target untapped creature you control. If you do, it deals damage equal to its power to target attacking or blocking creature an opponent controls.
  Flashback—1W, Pay 3 life. (You may play this card from your graveyard for its flashback cost. The remove it from the game.)