(1) This card’s name is treated as “Summoned Skull” while it is in the Monster Zone. (This card is still treated as an “Archfiend” card.)
(2) “Summoned Skull(s)” you control gain 500 ATK.
(3) If this Fusion Summoned card in its owner’s control is sent to the GY by your opponent‘s card (by battle, by card effect, or by being destroyed): You can Special Summon 1 “Summoned Skull” from your hand, Deck, or GY.