Mermail Abyssgunde (BLGG-EN057) - Battles of Legend: Glorious Gallery 1st Edition

If this card is discarded to the Graveyard: You can target 1 "Mermail" monster in your Graveyard, except "Mermail Abyssgunde"; Special Summon that target. You can only use the effect of "Mermail Abyssgunde" once per turn.