Jolteon - BW91 - Holo Promo from Black & White Promos, available at 401 Games Canada.

• Rarity: Promo
• Finish: Holofoil
• Artist: The Pokémon Company Art Team
• Card Text:
  [1] Electrigun (20+)
  You may discard a L Energy attached to this Pokémon. If you do, this attack does 40 more damage.
  [2L] Pin Missile (40x)
  Flip 4 coins. This attack does 40 damage times the number of heads.