Ars Magica Digital Codex

A Note on the Weaknesses of Demons

Each demon in this chapter has a Weakness listed. Characters know this weakness if they are aware the demon exists, consult a relevant source, and make an Intelligence + Infernal Lore roll against an Ease factor of 9 + (Might / 5).

If the weakness is a material, then in the presence of their weakness these demons must flee. They cannot regain Might while their weakness is present. If the weakness is a protected group, the demon cannot harm members of that group.