Changes

* This is the [[cover card]] of ''s name is a portmanteau of "[[wikipediaStructure Deck:Poseidon|PoseidonRoar of the Sea Emperor]]", the Greek god of the sea, and a dragon''/hydra.** Even the tip of its tail has the image of Poseidon's '[[wikipedia:Trident|TridentRealm of the Sea Emperor Structure Deck]].''

* This monster appears in the artworks of "[[Call of the Atlanteans]]", "[[High Tide on Fire Island]]", "[[Phantasm Spiral Assault]]", and "[[Phantasm Spiral Crash]]".** This monster's appearance resembles neck bracelet of this monster appears in the artwork of "[[The Dragon Dwelling Abyss-squall]]" and as an armband in the Deepartwork of "[[Mermail Abyssgaios]]".*** According to ''[[Master Guide 4 card storylines|Master Guide 4]]'', this monster transforms into "Abyssgaios" with the magic of the armband. Also they are *** This is supported by how both the bottom of "Abyssgaio's" body resembles this monster, both of whom share the same [[WATERAttribute]] and ([[Sea SerpentWATER]]-Type monsters despite both having ), [[Dragonoriginal ATK and DEF]] in their name(2800/1600), and number of "stars" (7).

* This monster resembles The tower appearing in the artwork of "[[w:c:monsterhunter:Lagiacrus|LagiacrusA Legendary Ocean]]" appears in this card's artwork, from albeit slightly visible in the upper left corner.** Fittingly, the above-mentioned card's Japanese name is "Atlantis, the Legendary City", which likely serves as the home of the "[[wikipedia:Monster Hunter|Monster HunterAtlantean]]" monsters.

** This card's position and color scheme is also very similar to named after [[wwikipedia:c:monsterhunterPoseidon|Poseidon]], the Greek god of the sea who is often depicted wielding his signature weapon, the [[wikipedia:LagiacrusTrident|Lagiacrustrident]].** Fittingly, this monster's three-pronged tail resembles the image of Poseidon's trident, a three-pronged spear used for spear fishing or as a polearm.

* This monster has a younger counterpart: "[[Legendary Atlantean Tridon]]". * This card's effect seems be original [[ATK]] (2800) is a mix between combination of the 1400 ATK of "[[Masked HERO AcidAtlantean Attack Squad]]" and "[[Giant TrunadeAtlantean Marksman]]". , while its original [[DEF]] (1600) is based just on the 1600 DEF of "Giant Trunade[[Atlantean Heavy Infantry]]" returns all Spell , which are valid monsters to [[Tribute]] and [[Special Summon]] it.** Fittingly, this card and Trap Cards on both sides the last two mentioned monsters debuted in ''[[Structure Deck: Roar of the field to Sea Emperor]]''/''[[Realm of the hand and the effect of Sea Emperor Structure Deck]]'', while "AcidAttack Squad" reduces was likely released as a teaser in the ATK ''[[Return of your opponentthe Duelist]]'s monsters' [[Core Booster]] pack two months prior.