You can only control 1 "Nefarious Archfiend Eater of Nefariousness". If you control a Spellcaster-Type monster, you can Special Summon this card (from your hand). Once per turn, during your opponent's End Phase, if this card is in your Graveyard: You can target 1 face-up monster you control; destroy it, and if you do, Special Summon this card.