Glacial Ray (CHK) from Champions of Kamigawa, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Jim Murray
• Card Text:
  Glacial Ray deals 2 damage to target creature or player.
  Splice onto Arcane 1R (As you play an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card’s effects to
  that spell.)