Orim's Thunder (CM2) from Commander Anthology Volume II, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Carl Critchlow
• Card Text:
  Kicker R (You may pay an additional R as you cast this spell.)
  Destroy target artifact or enchantment. If Orim's Thunder was kicked, it deals damage equal to that permanent's converted mana cost to target creature.