Card Rulings:Darkness Metal, the Dragon of Dark Steel

OCG Rulings

 * A Fusion/Synchro/Xyz Monster that was properly Special Summoned and then sent to the Graveyard or banished can be Special Summoned by the effect of "Darkness Metal, the Dark Steel Dragon". When that monster leaves the field, it returns to the Extra Deck instead of being placed on the bottom of the Deck.