Aurora Essence
Use Aurora Essence to permanently increase a 10★ or 11★ unit's maximum level.
By default, the maximum level for a 10★ unit is 200 and the maximum level for an 11★ unit is 220. Aurora Essences can be used to increase a 10★ unit's maximum level up to 220 and an 11★ unit's maximum level up to 240.
Each Aurora Essence increases the unit's level cap by one level, and a maximum of 20 Aurora Essences can be used per unit.
10★ units can additionally have their max level raised by another 20 levels through use of 
Prismatic Orbs, for a total potential level cap of 240.
11★ units can additionally have their max level raised by another 20 levels through use of 
Celestial Orbs, for a total potential level cap of 260.
Aurora Essences can can be obtained from the Bazaar, where they can be purchased for 100 Orb Points (OP) each.
Other Level Break Items
For 12★ rarity units, please refer to 
Empyreal Orbs.
For 11★ rarity units, please also refer to Celestial Orbs.
For 10★ rarity units, please also refer to Prismatic 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.
