Brineborn Cutthroat [Core Set 2020]

Set: Core Set 2020 Type: Creature — Merfolk Pirate Rarity: Uncommon Cost: {1}{U} Flash (You may cast this spell any time you could cast an instant.)Whenever you cast a spell during an opponent's turn, put a +1/+1 counter on Brineborn Cutthroat. "I always attack from where their spyglasses can't see."