>>111745004It would have to be reliant on when an how an epithet first appears/manifests.
The premise initially implies that the power is there at birth, but is only revealed when they (unconsciously) use it for the first time.
Perhaps they are revealed in a significant life event, in similar fashion to how Lunars manifest in the Exalted system.
Assuming that the "proficiency" stat on the character cards can be improved" It most commonly appears in the single digit age range, though it may appear later.
Assuming this is set in modern times, and the "1 in 5" people have epithets" stat is accurate, repeats are a certainty, even more so if words drop out of the inscription pool as they fall into obscurity.
