Items

Hero Experience - An item used to upgrade heroes. Can be obtained from Campaign.

Advance Essence - An item used to evolve heroes. Can be obtained from Campaign, Market, Tavern, and Tower of Babel.

Spacetime Key - Mysterious key from an unknown world that can unlock Spacetime Treasure in the Wheel of Time. Can be obtained from bundles in the Shop.

Eternal Crystal - Crystal that contains the eternal energy from other worlds. Can be used to upgrade a hero's Nexus in Wheel of Time. Obtained from the Hourglass of Time in the Instant Rewards.

Ultimate Crystal - Crystal that contains the ultimate energy from other worlds. Can be used to upgrade a hero's Nexus in Wheel of Time. Obtained from the Hourglass of Time in the Instant Rewards.

Enhanced Crystal - Crystal that contains the enhanced energy from other worlds. Can be used to upgrade a hero's Nexus in Wheel of Time. Obtained from the Hourglass of Time in Instant Rewards.

Primal Crystal - Crystal that contains the primal energy from other worlds. Can be used to upgrade a hero's Nexus in Wheel of Time. Obtained from the Hourglass of Time in Instant Rewards.