
Description, catalog fields, rules text, and how it plays—in one place.
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This creature can't attack unless defending player controls an Island.
Abilities, attacks, weakness & resistance
Other cards from Tenth Edition
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Sea Monster (10E 106, Foil) is a blue Creature — Serpent from the Tenth Edition core set. It costs {4}{U}{U}, is a 6/6, and has the restriction that it can’t attack unless the defending player controls an Island. Its large body and conditional attack restriction make it a defensive threat that pressures opponents who maintain islands while being less effective as an unconditional attacker.
Catalog pricing data as of 4 May 2026, 23:34