The Regirock, Regice, Registeel, or Regigigas this card is attached to takes 30 less damage from your opponent's attacks (after applying Weakness and Resistance).
Set: Sun & Moon: Ultra Prism
Card Number: 118/156
Rarity: Uncommon
Card Type: Trainer - Item
Name: Ancient Crystal
Finish: Regular
The Regirock, Regice, Registeel, or Regigigas this card is attached to takes 30 less damage from your opponent's attacks (after applying Weakness and Resistance).
