Armed Sea Hunter

Level 4 WATER/Sea Serpent Effect Monster
1800 ATK / 400 DEF

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.

Rulings – Yugipedia

Printings:

Ancient Prophecy: ANPR-EN025 (Common) - 2009-09-01
Realm of the Sea Emperor Structure Deck: SDRE-EN008 (Common) - 2012-10-11

Prices:

Cardmarket: 0.14 €
TCGplayer: $ 0.29