Heatmor (019/086) (Master Ball Pattern) [Scarlet & Violet: White Flare] XY125 but it cannot be activated

but it cannot be activated unless you control a Fiend monster

Set: Dynasty Finish: Cold Foil Type: Equipment Subtype: Head Rarity: Majestic Class: Assassin Power: 1 While Mask of Perdition is in your graveyard

Set: Quarter Century Stampede Card type: Tuner/Effect Monster Rarity: Quarter Century Secret Rare If you control "Fallen of Albaz" or it is in your GY: You can Special Summon this card from your hand

Set: XY: BREAKthrough Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

Heatmor (019/086) (Master Ball Pattern) [Scarlet & Violet: White Flare] XY125 but it cannot be activatedSet: Scarlet & Violet: White Flare Type: Fire Rarity: Uncommon Retreat cost: Colorless,Colorless