1 “Dracotail” monster + 1+ monsters in the hand

If this card is Fusion Summoned: You can target monsters on the field and/or GYs, up to the number of monsters used as material from the hand; return them to the hand. If 2 or more monsters are sent to the GY at the same time, while this card is in your GY (except during the Damage Step): You can Special Summon this card, but banish it when it leaves the field. You can only use each effect of “Dracotail Arthalion” once per turn.