A quick shot new Ars Magica spell, which allows the caster to remain safe from mundane humans. Intended for those times the wizard wishes to sleep safely and soundly.
Ward Against the Common Man
Rego Corpus 20, R: Touch, D: Ring, T: Circle
Creates a circle through which no ordinary (say protected by Parma Magica or otherwise resist the spell) person can cross or affect those within the circle.
(Base 5, R: Touch +1, Ring +2, Circle +0)
You can find the rest of the custom spells in this blog’s Ars Magica spell list. Happy gaming.