Edison format ruling
Cybernetic Hidden Technology
Card effect (current official text)When an opponent's monster declares an attack: You can send to the Graveyard 1 "Cyber Dragon" you control, or 1 Fusion Monster you control that lists "Cyber Dragon" as a Fusion Material Monster, then target the attacking monster; destroy that target.
Rulings
- Sending 1 Cyber Dragon or Fusion Monster listing Cyber Dragon as a Fusion Material to the GY is a cost. This effect targets the attacking monster.
- When you activate (flip face-up) Cybernetic Hidden Technology in response to an attack by your opponent's monster, you can also use its effect by paying its cost.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.