This card cannot be destroyed by card effects. If this card attacks, destroy all Defense Position monsters on the field after damage calculation. Once per turn, you can negate the effect(s) of 1 face-up monster your opponent controls and have this card gain ATK equal to the negated monster s ATK, until the End Phase. During the End Phase, return this card from the field to the Extra Deck, and Special Summon 1 Red Dragon Archfiend from your Graveyard.