Card Trivia:Ultimaya Tzolkin
- This card represents the Ultimate God entity in the Yu-Gi-Oh! 5D's manga. It is named after Ultimaya (which in Hindi means the inversion of Cosmic Illusion, the great Magic (same root) that makes the one Oversoul think it is many, and lost in the unfathomable Samsara) and Tzolk'in (the basic cycle of the Maya calendar).
- This monster is the evil manga counterpart of the Crimson Dragon.
- This monster has an evolved counterpart, "Phantasmal Lord Ultimitl Bishbaalkin".
- This card also has a Link Monster counterpart: "Duel Link Dragon, the Duel Dragon".
- Due to its OCG/TCG effect, this card cannot Summon all of the Duel Dragons with its effect. It cannot Summon "Ascension Sky Dragon", "Beelzeus of the Diabolic Dragons" and "Dragocytos Corrupted Nethersoul Dragon"—which are Level 10; or "Dragonecro Nethersoul Dragon"—which is a Fusion Monster.
- However, it can Summon all of the Signer Dragons and their Duel Dragon counterparts.
- This is the first Dark Synchro monster to appear in the manga.
- This is the first Synchro Monster that cannot be Synchro Summoned.
- Also, despite its release as a Synchro Monster, its Summoning requirements simulate those of a Dark Synchro Monster. Indeed, the Tuner monster and the non-Tuner monster required must be of the same Level and the subtraction of those Levels would have 0 as a result, this card's Level.
- This is the first Level 0 Monster to be printed.
- This is the second Monster Card to be printed with 0 Level/Rank "stars", after "Number F0: Utopic Future". Similar to it, it has 0 ATK and DEF and a condition that treats it as having a specific Level/Rank other than 0. Both monsters also appeared in the final battles of their respective series.
