Need Help Looking For an Artifact Spell
Alright, so, in the book Secrets of Xendrik, and the Dragon Magazine issue 345, there are these things called artifact spells. They can only be learned with a high enough Spellcraft check from studying the place they're found. Once you learn it, you can cast it exactly once within the next year. You can't make a scroll of it, you can't make a wand of it. If you don't cast it within that year, you lose it. After you cast it or lose it, you have to go back to the source to relearn it. The spells are generally more powerful than most people can cast at this level because of all the restrictions.
Now.... I swear I remember one that, once learned, so long as you didn't cast it, only caused you to age one day for the year that it stayed in your head, after which time you'd have to relearn it. If you cast it, it no longer protected you from that aging. Except... none of the spells in either Xendrik or Dragon have this effect. Does anyone else know of anywhere else they might have come up with Artifact Spells, and particularly the one I'm looking for?