Trevenant - XY94 - Pre-Release Promo from XY Promos, available at 401 Games Canada.

• Rarity: Promo
• Finish: Holofoil
• Artist: Midori Harada
• Card Text:
  Ability — Nervous Seed
  As long as this Pokémon is your Active Pokémon, the attacks of your opponent's Basic Pokémon cost Colorless more.
  [2P] Energy Press (70+)
  This attack does 10 more damage for each Energy attached to your opponent's Active Pokémon.