Shackle Slinger (Foil) (OTJ) from Outlaws of Thunder Junction, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Foil
• Artist: Josh Hass
• Card Text:
  Whenever you cast your second spell each turn, choose target creature an opponent controls. If it's tapped, put a stun counter on it. Otherwise, tap it. (If a permanent with a stun counter would become untapped, remove one from it instead.)