Description
NOT LEGAL
Standard
NOT LEGAL
Future
LEGAL
Historic
LEGAL
Timeless
LEGAL
Gladiator
LEGAL
Pioneer
LEGAL
Explorer
LEGAL
Modern
LEGAL
Legacy
NOT LEGAL
Pauper
LEGAL
Vintage
LEGAL
Penny
LEGAL
Commander
LEGAL
Oathbreaker
NOT LEGAL
Standardbrawl
LEGAL
Brawl
NOT LEGAL
Alchemy
NOT LEGAL
Pauper Commander
LEGAL
Duel
NOT LEGAL
Oldschool
NOT LEGAL
Premodern
NOT LEGAL
Predh
Spells your opponents cast that target a Merfolk you control cost 
more to cast.
Abilities your opponents activate that target a Merfolk you control cost more to activate.
more to cast.Abilities your opponents activate that target a Merfolk you control cost
more to activate.