Scrap-Iron Signal — Ruling

Effetto 0

• This card does not target. (It must be chained directly to the activation of an opponent's monster effect.)
• This card can be activated during the Damage Step.
• This card can only be activated if you have a face-up Synchro Monster in your Monster Zone that requires a Synchro Monster as its material (such as Satellite Warrior, Shooting Star Dragon, or Red Nova Dragon).
• Negating the monster effect's activation and Setting this card afterward do not happen simultaneously.