[ Sea Serpent / Effect ]After damage calculation, if this card battles an Effect Monster: Negate the effects of that monster (including in the Graveyard).
You must control another face-up WATER monster to activate and to resolve this effect.
If this card would be destroyed, you can destroy 1 face-up Level 3 or lower WATER monster you control instead.
ATK/ 1800
DEF/ 400