If this card is Normal or Special Summoned: You can Special Summon 1 Level 7 or lower Illusion monster from your Deck, except "Nightmare Twinkle", but return it to the hand during the End Phase. You can only use this effect of "Nightmare Twinkle" once per turn. If this card battles a monster, neither can be destroyed by that battle. Once per turn, at the end of the Damage Step, if a monster battled: You can change the battle positions of all monsters on the field.