When your opponent activates a monster effect, while you control a Synchro Monster that lists a Synchro Monster as material: Negate the activation, also, after that, Set this card face-down instead of sending it to the GY. You can only activate 1 "Scrap-Iron Signal" per turn.
NM-Mint 1st Edition - $0.10
Lightly Played 1st Edition - $0.10
Moderately Played 1st Edition - $0.10
Heavily Played 1st Edition - $0.10
Damaged 1st Edition - $0.10
NM-Mint 1st Edition Non English - $0.10
Lightly Played 1st Edition Non English - $0.10
Moderately Played 1st Edition Non English - $0.10
Heavily Played 1st Edition Non English - $0.10
Damaged 1st Edition Non English - $0.10