Transcendence is feature that allows a summon or character to surpass their limit by unlocking a 6th uncap star. Transcendence is raised in increments of 10 levels at a time, which will fill in a portion of the sixth star. Once the summon or character reaches the maximum Transcendence level, they will complete their sixth uncap.
Transcendence can be performed from the Uncap screen after fulfilling certain requirements and gathering the necessary treasure.
For summons, Transcendence strengthens its aura and call, and bestows it with new aura effects. A summon that has been Transcended can't be reserved, reduced, sold, or used as materials to upgrade or uncap other summons.