If you control a 'Photon' or 'Galaxy' monster, you can Normal Summon this card without Tributing. When you do: Target 1 'Galaxy-Eyes Photon Dragon' in your Graveyard (if possible); regardless, this card loses 1000 ATK, and if it does, Special Summon that target (if any) in face-up Defense Position. This ATK decrease lasts until the End Phase.