Dark Rebellion Xyz Dragon [NECH-EN053] Ghost Rare Spell also they cannot be destroyed

also they cannot be destroyed by your opponent's card effects

You can only use 1 "Heritage of the Chalice" effect per turn

it is unaffected by card effects

At the start of the Damage Step

Set: Astral Pack 6 Card type: Normal Monster Rarity: Common Attack: 1300 Defense: 1400

Dark Rebellion Xyz Dragon [NECH-EN053] Ghost Rare Spell also they cannot be destroyedSet: The New Challengers Card type: Xyz Effect Monster Rarity: Ghost Rare Attack: 2500 Defense: 2000 2 Level 4 monsters You can detach 2 Xyz Materials from this card, then target 1 face up monster your opponent controls; its ATK becomes half its current ATK, and if it does, this card gains that lost ATK.