Photon Dragon Advent

LIGHT 1

You can Tribute this card; Special Summon 1 "Galaxy-Eyes" monster from your hand or Graveyard, except "Galaxy-Eyes Cloudragon". You can only use this effect of "Galaxy-Eyes Cloudragon" once per turn. If this card is in the Graveyard: You can target 1 "Galaxy-Eyes" Xyz Monster you control; attach this card to it as an Xyz Material. You can only use this effect of "Galaxy-Eyes Cloudragon" once per Duel.

LIGHT 8

You can Special Summon this card (from your hand) by Tributing 2 monsters with 2000 or more ATK. During the Battle Step, if this card battles an opponent's monster (Quick Effect): You can target that opponent's monster; banish both this card from the field and that target. Return those banished monsters to the field at the end of the Battle Phase, and if you banished an Xyz Monster, this card gains 500 ATK for each material it had when it was banished.

LIGHT 8

If you control a "Photon" or "Galaxy" monster, you can Normal Summon this card without Tributing. If Summoned this way: Target 1 "Galaxy-Eyes Photon Dragon" in your GY (if possible); regardless, this card loses 1000 ATK, and if it does, Special Summon that target (if any) in Defense Position. This ATK decrease lasts until the end of this turn.