Splash Lasher (BLB) from Bloomburrow, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Brian Valeza
• Card Text:
  Offspring 1U (You may pay an additional 1U as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.)
  When this creature enters, tap up to one target creature and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)