Card Trivia:Mermail Abyssgaios
- This card seems to have been Xyz Summoned by using both "Mermail - Megaloabyss" and (oddly enough) "Atlantean Dragon Poseidra". This is evident in that the lower half of this monster has the lower half of Poseidra; Poseidra's trident-shaped tail has also become this monster's trident.
- This card is based off of the Greek god Poseidon.
- "Poseidra", one of the Xyz Materials (based off the artwork, as explained above), is also based off Poseidon.
- Interestingly, this card's silhouette also appears in the commercial of Structure Deck: Roar of the Sea Emperor.