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This creature can't attack unless defending player controls an Island.
Abilities, attacks, weakness & resistance
Other cards from Eighth Edition
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Sea Monster (8ED #99, Foil) is a blue Creature — Serpent from Eighth Edition with a 6/6 body and a converted mana cost of 6. It has the restriction that it can't attack unless the defending player controls an Island, which affects when it can be declared as an attacker. As a high-cost common, it functions as a late-game threat that depends on opponents' lands to be aggressive.
Catalog pricing data as of 11 May 2026, 13:24
