Thundurus - BW41 - Promo - Reverse Holo from Black & White Promos, available at 401 Games Canada.

• Rarity: Promo
• Finish: Reverse Holo
• Artist: 5ban Graphics
• Card Text:
  [1] Charge
  Search your deck for a Lightning Energy card and attach it to this Pokémon. Shuffle your deck afterward.
  [1LL] Disaster Volt (80)
  Discard an Energy attached to this Pokémon.