Edison format ruling
Jade Knight

Card text as printed in this era① While this card is in Attack Position, Machines you control with 1200 or less ATK cannot be destroyed by Trap effects.
② If this card is destroyed by battle and sent to the GY, and was face-up at attack declaration:
You can add 1 Level 4 LIGHT Machine from your Deck to your hand.
Rulings
- If this Set card was destroyed by battle, you cannot activate the ② effect. It must be face-up when targeted for the attack. This ruling also applies to "Cyber Phoenix".
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.