Demonfire (DD2) from Duel Decks: Jace vs. Chandra, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Greg Staples
• Card Text:
  Demonfire deals X damage to target creature or player. If a creature dealt damage this way would be put into a graveyard this turn, exile it instead.
  Hellbent — If you have no cards in hand, Demonfire can't be countered by spells or abilities and the damage can't be prevented.