Edison format ruling
Royal Knight
Card effect (current official text)When this card destroys a monster by battle and sends it to the Graveyard, gain Life Points equal to the DEF of the destroyed monster.
Rulings
- For its effect to activate, "Royal Knight" must be on the field when the monster it destroyed is sent to the GY. Its effect will not activate if it battles a monster with equal ATK and they are both destroyed.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.