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.

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commanders only

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min match %

Cards that do something similar expected a card that isn't here?

Arena Trickster 94%

$0.04#27194

"Whenever you cast your first spell during each opponent's turn, put a +1/+1 counter on this creature."

Taurean Mauler 91%

$0.72#940

"Whenever an opponent casts a spell, you may put a +1/+1 counter on this creature."

Steelburr Champion 88%

$0.29#6460

"Whenever an opponent casts a noncreature spell, put a +1/+1 counter on this creature."

Arcbound Tracker 85%

$0.16#9582

"Whenever you cast a spell other than your first spell each turn, put a +1/+1 counter on this creature."

Illvoi Operative 81%

$0.10#19607

"Whenever you cast your second spell each turn, put a +1/+1 counter on this creature."

Thunder Drake 81%

$0.19#20416

"Whenever you cast your second spell each turn, put a +1/+1 counter on this creature."

Monk of the Open Hand 81%

$0.28#17221

"Whenever you cast your second spell each turn, put a +1/+1 counter on this creature."

Forgotten Ancient 81%

$0.37#389

"Whenever a player casts a spell, you may put a +1/+1 counter on this creature."

Thundering Mightmare 81%

$0.40#10541

"As long as this card is paired with another creature, each of those creatures has "Whenever an opponent casts a spell, put a +1/+1 counter on this creature.""