Both monsters feature an effect that allows it to gain ATK upon being Link Summoned.
Both were created in the anime by combining the power of the Ignis, with this card using the power of all six Ignis, and five for "Firewall Dragon Darkfluid" (all except Lightning).
Both monsters are the signature cards used by the protagonist's allies-turned-enemies that took the role of the final antagonists in their respective series: this monster was used by Ai, who was formerly Playmaker's partner in Yu-Gi-Oh VRAINS, while "CXyz Barian Hope" was used by Nash, the friend/rival of Yuma Tsukumo in Yu-Gi-Oh! ZEXAL.
Both characters also eventually ended up being the last surviving members of their group: Ai was the last Ignis, while Nash was the last member of the Seven Barian Emperors.
Both monsters represent the bonds between a major group of characters in the anime, and were Summoned using cards that represented the members of each group: this monster was Summoned using the six main "@Ignister" monsters (which are based on the Ignis), while "Barian Hope" was Summoned using the seven "Number C10X" monsters (the signature monsters of the Seven Barian Emperors).
Both were also used in a Duel against the main protagonist of the anime: this monster was used by Ai during his Duel against Playmaker, while "Barian Hope" was used by Nash in his Duel against Yuma.
Both monsters feature an effect to gain ATK in multiples of 1000 based on their materials: this monster gains 1000 ATK for each Link Material used to Summon it, while "Barian Hope" gains 1000 ATK for each Xyz Material attached to it.
This monster is tied for the highest Link Rating of all Link Monsters, along with "Firewall Dragon Singularity".
This is the only card in the Yu-Gi-Oh! VRAINS anime with ? ATK.
This monster's attack name, "Ultima Attribution", references to the ultimate attribution error, the tendency for persons from one group to determine that any bad acts by members of another group are caused by internal attributes or traits rather than by outside circumstances or situations.