Fiendish Chain [LC5D-EN082] Secret Rare Field Spell Card "Subterror" cards you control cannot

"Subterror" cards you control cannot be destroyed by your opponent's card effects

then that monster gains 800 ATK for each (even if this card leaves the field)

Set: Premium Gold Card type: Effect Monster Rarity: Gold Rare Attack: 2000 Defense: 1700 Increase the ATK of this monster by 300 points for each Dark Magician or Magician of Black Chaos in either player''s Graveyard

During either player's Main Phase 1: You can discard both this card and 1 "Nekroz" Spell Card

Set: Astral Pack 7 Card type: Xyz/Effect Monster Rarity: Ultimate Rare Attack: 2000 Defense: 1500 2 Level 4 monsters

Fiendish Chain [LC5D-EN082] Secret Rare Field Spell Card "Subterror" cards you control cannotSet: Legendary Collection 5D's Card type: Trap Card Rarity: Secret Rare Select 1 face up Effect monster your opponent controls. Its effects are negated and cannot attack. If the selected monster is destroyed, destroy this card.