Either of the following effects can be used once per turn by sending 1 "Galaxy" monster from your hand or Deck to the Graveyard. Each effect can only be used once per Duel, and only if you begin the Duel with a Deck (excluding Extra Deck) that contans at least 10 "Galaxy" or "Photon" cards and no monsters except for "Galaxy" or "Photon" monsters. ● Add 1 "Number 90: Galaxy-Eyes Photon Lord" from outside of your Deck to your Extra Deck. ● Send 1 "Galaxy" card in your hand to the Graveyard. If you Xyz Summon a "Galaxy-Eyes" Xyz Monster with 4000 or more ATK this turn, you can also Xyz Summon it by using "Galaxy-Eyes Photon Dragon" you control as the material one time only.