While you control another Fiend monster, monsters cannot attack this card. This card's ATK/DEF become the number of other Fiend monsters on the field x 1000.
Set:
Speed Duel GX: Duelists of Shadows
While you control another Fiend monster, monsters cannot attack this card. This card's ATK/DEF become the number of other Fiend monsters on the field x 1000.