Nidoking - 24/147 - Rare - Reverse Holo from Aquapolis, available at 401 Games Canada.

• Rarity: Rare
• Finish: Reverse Holo
• Artist: Naoyo Kimura
• Card Text:
  Poké-POWER — Earth Rage
  Once during your turn (before your attack), if Nidoking is your Active Pokémon, you may flip a coin. If heads, put a damage counter on each of your opponent's Benched Pokémon. This power can't be used if Nidoking is affected by a Special Condition.
  [2FF] Giant Horn (50+)
  Flip a coin. If heads, this attack does 50 damage plus 30 more damage.