Card Trivia:Evigishki Tetrogre
- Visually, this monster resembles a combination of "Vylon Tetra" and "Gishki Noellia".
- In the Master Guide 3 card storylines, "Noellia" merges with "Tetra" and forms this monster in order to fight the "Steelswarm".
- This card is a Level 6 monster, and the combined Levels of "Gishki Noellia" and "Vylon Tetra" are 6; their combined ATK is 2600, the same as the original ATK of this card.
- The head of "Vylon Tetra" can be seen on the chest armor of "Evigishki Tetrogre", and the hair of "Gishki Noellia" can be seen on its head.
- The crest of "Gishki Aquamirror" can be seen in the background of this card's artwork.
- This card has the highest ATK of all Level 6 or lower Ritual Monsters, as well as being tied for the second-highest ATK of any Level 6 monster.