What are Crystals for? May 31, 2022 15:35 Updated You can spend Crystals in the Shop and in purchase windows to buy: Energy tools and Power items, Tools, Chargers, Items to enter the event Buildings, Talismans, Chests. Related articles How do I get Crystals? What is Power? How do I get Rubies? How do I get Gems? How many times can I assemble a collection?