Brineborn Cutthroat

{1}{U} · Creature — Merfolk Pirate

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 (2)

Jul 12, 2019 · Brineborn Cutthroat's ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.

Jul 12, 2019 · 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.

LegacyLegal

VintageLegal

ModernLegal

PioneerLegal

StandardLegal

PauperNot legal

PremodernNot legal

cEDHLegal

Where it’s played now

Inclusion by archetype · Standard

% of archetype's lists running it · last 30 days · n=8 decks

Archetype	Format	Inclusion	Copies	Decks (n)
Dimir Midrange	Standard	12.5%	4×	8

Data as of Jun 14, 2026 · MTGO + papercasthaven.com

Price