Brineborn Cutthroat
From Foundations set
Brineborn Cutthroat
Creature — Merfolk Pirate
2/1
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 this creature.
Rulings
- Brineborn Cutthroat must be on the battlefield for its last ability to function. Notably, the ability won't trigger as you cast Brineborn Cutthroat during an opponent's turn.
- Brineborn Cutthroat's ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.