Ninjitsu Art of Duplication (ORCS-EN089)

Tribute 1 "Ninja" monster; Special Summon any number of "Ninja" monsters from your Deck, in face-up Attack Position or face-down Defense Position, with combined Levels less than or equal to the Level of the Tributed monster. When this card leaves the field: Destroy those monsters.

trap / Continuous, Order of Chaos