Sinful Spoils of Doom - Rciela

Target 1 Level 7 or higher Spellcaster monster you control; apply the following effects.• While face-up, that monster is unaffected by other monsters' effects this turn, and is sent to the GY during the Standby Phase of the next turn.• All monsters your opponent currently controls lose ATK equal to the targeted monster's ATK, then if their ATK becomes 0 by this effect, destroy them.You can only activate 1 "Sinful Spoils of Doom - Rciela" per turn.