Upper limit for age would be 18 with being discovered. It also depends what kind of descendant your character is. An actual demigod is going to be affected earlier than a dormant. Divine Gift is something basic that your parentage gave you like Percy Jackson being able to control water. Signature Ability is what your character will develop at Elysium Academy with training…if they get there that is. [@Lyla] :)

And thank you for the calculator!