• "Vylon Tetra" and "Gishki Noellia" were used to Ritual Summon this card. Their combined level is equal to 6 and their combined ATK is equal to 2600, both the same as Tetrogre.
    • This is supported by the Master Guide 3 card storylines.
    • The head of "Vylon Tetra" can be seen on the chest of "Evigishki Tetrogre", and the hair of "Gishki Noellia" can be seen on its head.
      • In fact, the Japanese name of this card is "Eviritua Tetraogre" further supporting this.
  • 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.
  • This is the only "Evigishki" monster that has the effect of sending cards to the Graveyard; the others focus on shuffling cards into the Deck, or looking at the opponent's hand.
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