Mermail Abyssturge (ABYR-EN017) [Abyss Rising]

When this card is Normal or Special Summoned: You can discard 1 WATER monster to the Graveyard, then target 1 Level 3 or lower WATER monster in your Graveyard; add that target to your hand. You can only use the effect of "Mermail Abyssturge" once per turn.