Scrap-Iron Signal

Counter Trap

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.

Rulings – Yugipedia

Printings:

Legendary Duelists: Magical Hero: LED6-EN027 (Rare) - 2020-01-16
Legendary Duelists: Season 3: LDS3-EN124 (Common) - 2022-07-21

Prices:

Cardmarket: 0.07 €
TCGplayer: $ 0.09