Dual Avatar - Empowered Mitsu-Jaku

"Dual Avatar Feet - Kokoku" + 2 "Dual Avatar" monstersThe first time each "Dual Avatar" Fusion Monster you control would be destroyed by battle each turn, it is not destroyed. Once per turn, during your Main Phase: You can return all Spells and Traps your opponent controls to the hand. When a monster effect is activated on your opponent's field while you control 2 or more Fusion Monsters (Quick Effect): You can destroy that monster. You can only use this effect of "Dual Avatar - Empowered Mitsu-Jaku" once per turn.