Nightmare Crystal Tweet Details Artist: Phrixel Card Name: Nightmare Crystal Card Number: 63/116 - 2BET Finish: Foil Flavor Text: Forged from hardened bloodlight. Rarity: Rare Rules Text: If your Spirit isn't Dark, this card comes into play exhausted.Exhaust: Produce 1.Exhaust: Send the top card of your deck to the discard zone. Set: Betrayal Type: Special Shard