[ Sea Serpent / Effect ]Cannot be Normal Summoned/Set.
Must be Special Summoned (from your hand) by having 4 or more LIGHT monsters in your Graveyard, and cannot be Special Summoned by other ways.
Once per turn: You can target 1 Field Spell Card and 2 other cards on the field; destroy them.
ATK/ 2600
DEF/ 1500