Advanced format ruling
The Agent of Judgment - Saturn
Card effect (current official text)While your Life Points are higher than your opponent's, you can Tribute this card to inflict damage to your opponent equal to the difference. If you do not control a face-up "The Sanctuary in the Sky", this effect is not applied. You cannot conduct your Battle Phase the turn you activate this effect.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.