Quote Originally Posted by Maglubiyet View Post
It doesn't sound like much of a price to me. In a world like that I don't see how you would ever have mages old enough to cast more than a couple spells. As soon as any of them started feeling the effects of aging they would cast a spell or two to get back to an optimum. You would end up with a class of immortal, perpetually 25-year-olds.
There isn't such a spell. They could try to craft potions that will reduce your age, but every time you drink one after the first, there's an increasing chance that it will have the reverse effect and age you a number of years equal to all those you had recovered via potions in the past!