Qwilfish - 051/202 - Uncommon from Sword & Shield (Base Set), available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Midori Harada
• Card Text:
  Ability — Poison Point
  If this Pokemon is your Active Pokemon and is damaged by an opponent's attack (even if this Pokemon is Knocked Out), the Attacking Pokemon is now Poisoned.
  [1] Venoshock (10+)
  If your opponent's Active Pokemon is Poisoned, this attack does 60 more damage.