You may be right. Perdo Corpus aging is too easy to be balanced unless it can be undone, though PeCo magic is over once the spell ends, so the aging is almost identical to 'natural' aging. Probably InCo magic can discern between natural aging and magically inflicted aging even if InVi magic couldn't pick up the residue of magic from the PeCo spell that did it.
Sounds eminently reasonable. Of course, I imagine that if winter has passed in between the aging and the fixing, and aging points have accrued, that probably can't be undone.
While we're looking at uses and abuses of Algiz warding, here's two examples from my blog at magioftom.wordpress.com/2015/11 ... ng-olunar/ that I am considering adding to the Non-hermetic grimoire:
I, (the runemaster), defy Gullveig - Algiz(perth) 10, - wards against hostile magic. Algiz base 10 wards all things appropriate to the secondary rune, and according to HMRE p135 "Often Perth is used to affect the supernatural realms, particularly magic. It can target vis, and can also target other spells and supernatural effects".
I, (the runemaster), defy Surtur - Algiz(Kauno) 10, - wards against fire, heat, and feverish diseases. Algiz base 10 wards all things appropriate to the secondary rune, and looking at Kauno on HMRE p132 it includes all these things.
Now the second one is relatively straightforward. The first one - how would you adjudicate the warding? Does it competely ward against all spells (so you can't use your own beneficial ones) and prevent you picking up vis, or should it not completely ward?
If it shouldn't ward completely, would a more appropriate effect be the Perth guideline "All supernatural effects cast on the target that are less than or equal to half this effect's level are dispelled" so a level 10 would ward against level 5 hermetic spells and supernatural abilities with a score of 1 being used and scale up by a magnitude per extra 10 levels of Perth magic applied?
grin Maybe it fails completely, because it works completely, including against itself...
While we're looking at uses and abuses of Algiz warding, here's two examples from my blog at magioftom.wordpress.com/2015/11 ... ng-olunar/ that I am considering adding to the Non-hermetic grimoire:
I, (the runemaster), defy Gullveig - Algiz(perth) 10, - wards against hostile magic. Algiz base 10 wards all things appropriate to the secondary rune, and according to HMRE p135 "Often Perth is used to affect the supernatural realms, particularly magic. It can target vis, and can also target other spells and supernatural effects".
I, (the runemaster), defy Surtur - Algiz(Kauno) 10, - wards against fire, heat, and feverish diseases. Algiz base 10 wards all things appropriate to the secondary rune, and looking at Kauno on HMRE p132 it includes all these things.
Now the second one is relatively straightforward. The first one - how would you adjudicate the warding? Does it competely ward against all spells (so you can't use your own beneficial ones) and prevent you picking up vis, or should it not completely ward?
If it shouldn't ward completely, would a more appropriate effect be the Perth guideline "All supernatural effects cast on the target that are less than or equal to half this effect's level are dispelled" so a level 10 would ward against level 5 hermetic spells and supernatural abilities with a score of 1 being used and scale up by a magnitude per extra 10 levels of Perth magic applied?
I like interpreting that effect as an "Invisible to Magic" spell. That is, the vitkir can't be targeted by spells and supernatural effects, but can still be affected by magical substances. That nicely dodges the Limit of Magic Resistance and still feels useful and fun.