• In episode 14, Yuma Tsukumo Sets this card during his Duel against Kite Tenjo, but did not activate it. He intended to activate this card when "Galaxy-Eyes Photon Dragon" (whose ATK was 6500 through its own effect and "Lumenize") attacks "Number 39: Utopia" in an attempt to destroy "Galaxy-Eyes Photon Dragon" (as even though this card would make the ATK of "Utopia" the same as "Galaxy-Eyes Photon Dragon", only the latter would be destroyed as "Numbers" can only be destroyed in battle by "Numbers"), however Kite anticipated such a strategy and Normal Summons "Photon Cerberus", whose effect forbids both players from activating Trap Cards during the turn it is Normal Summoned. This card remained on the field until the Duel was over.
    • This card also appear in Astral's explanation on this card and the strategy he had in mind for it. Yuma realizes that once this card makes the ATK of "Utopia" the same as the ATK of "Galaxy-Eyes Photon Dragon" when it attacks, only "Galaxy-Eyes Photon Dragon" would be destroyed as "Numbers" can only be destroyed by "Numbers".
  • In episode 17, this card is shown in a flashback Astral has when Yuma tells him he can't tell his friends that he almost lost to Kite.