Lash Out (LRW) from Lorwyn, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Scott Hampton
• Card Text:
  Lash Out deals 3 damage to target creature. Clash with an opponent. If you win, Lash Out deals 3 damage to that creature's controller. (Each clashing player reveals the top card of his or her library, then puts that card on the top or bottom. A player wins if his or her card had a higher converted mana cost.)