Mermail Abyssgaios

Level 7 WATER/Aqua Xyz Effect
2800 ATK / 1600 DEF

2 Level 7 WATER monsters
While this face-up card has Xyz Material, Level 5 or higher monsters cannot attack. Once per turn, during either player's turn: You can detach 1 Xyz Material from this card; negate the effects of all face-up monsters your opponent currently controls that have less ATK than this card, until the end of the turn.

Rulings – Yugipedia

Printings:

Abyss Rising: ABYR-EN046 (Ultimate Rare) - 2012-11-09
Abyss Rising: ABYR-EN046 (Ultra Rare) - 2012-11-09
Quarter Century Stampede: RA04-EN065 (Collector's Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN065 (Platinum Secret Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN065 (Quarter Century Secret Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN065 (Secret Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN065 (Super Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN065 (Ultimate Rare) - 2025-04-10
Quarter Century Stampede: RA04-EN065 (Ultra Rare) - 2025-04-10

Prices:

Cardmarket: 0.02 €
TCGplayer: $ 0.13