Tome Entry
Sea Serpent
Creature — SerpentMasters Edition IV · common
5 / 5
This creature can't attack unless defending player controls an Island.
When you control no Islands, sacrifice this creature.

Legality
StandardFutureHistoricTimelessGladiatorPioneerModernLegacyPauperVintagePennyCommanderOathbreakerStandardbrawlBrawlAlchemyPaupercommanderDuelOldschoolPremodernPredhTlr