Kingdra GX - SM155 - Hyper Rare Promo from Sun & Moon Promos, available at 401 Games Canada.

• Rarity: Promo
• Finish: Holofoil
• Artist: 5ban Graphics
• Card Text:
  Pokémon-GX rule — When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.
  [1] Hydro Pump (10+)
  This attack does 50 more damage for each Water Energy attached to this Pokémon.
  [W] Reverse Thrust (30)
  Switch this Pokémon with 1 of your Benched Pokémon.
  [W] Maelstrom GX
  This attack does 40 damage to each of your opponent’s Pokémon. (You can't use more than 1 GX attack in a game.)