1 Scrap Tuner + 1 or more non-Tuner monsters
Once per turn, you can select 1 card you control and 2 cards your opponent controls. Destroy the one you control and return the two your opponent controls to the hand. When this card is destroyed by your opponent's card (either by battle or by card effect) and sent to the Graveyard, select 1 non-Synchro Scrap monster in your Graveyard, and Special Summon it.