For a Synchro Summon, you can substitute this card for any 1 «Synchron» Tuner. You can only use each of the following effects of «Scrap Synchron» once per turn. If you Synchro Summon a monster that mentions a «Synchron» Tuner as material, this card in your hand can also be used as material. If a monster(s) you control (that mentions «Junk Warrior» or is a Synchro Monster with «Warrior» in its original name) would be destroyed by battle or card effect, you can banish this card from your field or GY instead.