Use Celestial Orbs to permanently increase an 11★ unit's maximum level.
Celestial Orbs can only be used on units that are 11★ rarity.
By default, the maximum level for an 11★ unit is 220. Celestial Orbs can be used to increase the unit's maximum level to 260, which is an additional 20 levels after using Aurora Essences. Each Celestial Orb increases the unit's level cap by one level, and a maximum of 20 Celestial Orbs can be used per unit.
Note: 11★ units must have their max level raised from level 220 to 240 through use of Aurora Essences before Celestial Orbs can be used.
Other Level Break Items
For 12★ rarity units, please refer to Empyreal Orbs.
For 9★ rarity units, please refer to Ichor.
For 8★ rarity units, please refer to Soma.
For 7★ and under rarity units, please refer to Ambrosia.