Conflagrate (TSP) from Time Spiral, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Warren Mahy
• Card Text:
  Conflagrate deals X damage divided as you choose among any number of target creatures and/or players.
  Flashback—RR, Discard X cards. (You may play this card from your graveyard for its flashback cost. Then remove it from the game.)