- Crystals are a crucial currency in Castle Duels, vital for summoning and upgrading powerful units, unlocking new spells, acquiring strategic advantages, and dominating the arena.
- Use Crystals to summon new, rarer units from the in-game shop or special packs. Expanding your unit collection allows for diverse and powerful deck compositions.
- Spend Crystals to upgrade your units, increasing their stats like damage, health, and attack speed. Upgraded units perform better in combat and unlock new abilities.
- Crystals are essential for unlocking and upgrading spells that can turn the tide of battle by dealing damage, healing allies, or controlling the battlefield.
- Utilize Crystals to purchase various items in the in-game shop, such as gold, experience scrolls, and other useful consumables that will bolster your army.
- Crystals can be used to open chests containing valuable rewards like unit cards, spell fragments, and other resources to accelerate your progression.
- With Crystals, you can participate in special tournaments and challenges, which often require a Crystal entry fee but offer exclusive rewards and unique cards.
- Crystals can also be used to speed up chest opening times or reset cooldowns, allowing you to progress faster and get back into the fight.
Dominate the arena with Crystals in Castle Duels!
Acquire Crystals to summon mighty units, unlock powerful spells, and accelerate your rise to become the ultimate champion in the world of Castle Duels.
Main benefits of Crystals in Castle Duels:
- Unlock a wide array of unique and powerful units.
- Acquire materials to strengthen your units and their abilities.
- Unlock and upgrade spells for superior combat performance.
- Obtain valuable items and consumables from the in-game shop.
- Open chests for rare unit cards and spell fragments.
- Access exclusive rewards through special events and tournaments.
- Speed up chest opening and cooldown resets for quicker progression.
Invest in Crystals — and forge your path to victory in Castle Duels!

Strategically enhance your Castle Duels journey with the power of Crystals!
Crystals provide you with the essential resources needed to build a formidable army, optimize your units' abilities, and conquer the challenges that await in the dynamic arenas of Castle Duels.
Your keys to a more powerful and efficient Castle Duels experience:
- Elite Unit Summons: Gain access to a diverse roster of powerful characters.
- Rapid Enhancement: Quickly level up your units and their gear with essential materials.
- Uninterrupted Battles: Engage in more action and farm resources efficiently.
- Resource Mastery: Obtain the items and consumables needed for crucial upgrades.
- Exclusive Advantages: Access powerful rewards and rare items from special events.
- Accelerated Growth: Speed up development and quickly get back into the fight.
- Strategic Advantage: Gain an edge over opponents with superior units and spells.
Use Crystals wisely — and become a legend in Castle Duels!