Card Trivia:T.G. Halberd Cannon
- This card is tied with "Majestic Red Dragon", "Malefic Paradox Dragon", "Odin, Father of the Aesir", and "Shooting Quasar Dragon" for being the strongest Synchro Monster in terms of ATK. It is tied with "Malefic Paradox Dragon" and "Shooting Quasar Dragon" for having the highest DEF.
- This is the second level 12 Synchro Monster shown so far. The first is "Red Nova Dragon". They were later followed by "Shooting Quasar Dragon.
- All three are Synchro Summoned in a unique way.
- This card is also the third Level 12 Machine-Type monster to be released; first being "Barbaroid, the Ultimate Battle Machine", and the second being "Meklord Astro Mekanikle".
- This card is the first Synchro Monster that requires at least three Synchro Monsters as its Synchro Material Monsters.
- This card's name corresponds with "T.G. Blade Blaster". The blade part is replaced with halberd and the blaster part is replaced with cannon.
- This card's background is similar to the background of "T.G. Blade Blaster".
- This card and "Cosmic Blazar Dragon" are the only Delta Accel Synchro Monster so far; the "XXX" in it's name represents "Delta Accel Synchro"
- In addition, the ∞ in its anime name represents Antinomy's true allegiance to Z-one, whose servant Aporia's embodiments of despair used the Infinity Monsters.
- In the episode 144, during the Summon animation of this card, the Sun became a Supernova, and after the explosion, in its place, a giant Black Hole formed. This could be symbolism that explains that in the future (Z-one's), the excessive amount of Synchro Summons (Delta Accel Synchro) caused a loss of control of the Ener-D and the destruction of the world and of humanity (sun's supernova), leaving in its place a world of ruin and without any form of life remaining (the Black Hole). Antinomy might be one of the few individuals who did not cause the Ener-D to spin in reverse as he was able to perform Clear Mind.
- This is the only Signature card used by a survivor of the apocalyptic future that didn't have an effect in the anime that prevents from being destroyed by either banishing a specific monster in your graveyard or tributing a monster on the field.
- This card's appearance (especially in the anime) resembles the titular mecha of the anime, Gunbuster as its colors are somewhat similar.
- This is one of the few monsters Yusei was never able to defeat (not counting minor monsters that were used to summon stronger ones). He did defeat its owner, but he never defeated the monster itself.