Description: When this card is activated: You can add 1 "Dual Avatar" monster from your Deck to your hand. If you control a "Dual Avatar" Effect Monster: You can Special Summon 1 "Dual Avatar Spirit Token" (Warrior/LIGHT/Level 2/ATK 0/DEF 0), also you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Fusion Monsters. You can only use this effect of "Perfect Sync - A-Un" once per turn. You can only activate 1 "Perfect Sync - A-Un" per turn.
