I’ve found an old site full of Ars Magica spells which appear to be from the third edition of the game (it’s French and looks like 3e … ?), and while many are now in some book or other – spells remain which are darn great so I’ve revamped them for 5th edition Ars Magica. This is the first of many post based upon these “lost spells”.
Firstly a spell stop natural healing for the duration, which makes more sense as a reworking of the Creo Corpus guidelines for wound recovery. In 5e it is easier to inflict a light wound than heal one (base 10 vs 15), so using similar stepping difficulties with Perdo Corpus base 1 causes a -3 to rolls, which scales by additional magnitude to base 10 to cause a -18 modifier. And further to base 15 to stop all wounds from improving for the duration.
Curse of Chronic Injury
Perdo Corpus 15, R: Touch, D: Moon, T: Individual
The target suffers a -9 to all wound recovery rolls for the duration.
(Base 3, +1 Touch, +3 Moon)
The Stagnant Flesh
Perdo Corpus 35, R: Touch, D: Moon, T: Individual
The target cannot heal naturally from any wounds or infliction for the duration. All recovery rolls which indicate an improvement are ignored, and negative side effects of rolls are retained.
(Base 15, +1 Touch, +3 Moon)
All the 550+ new spells for Ars Magica can be found here.