[llamabeast]

A ring of regeneration is definitely a good stopgap move. That should slow down the afflictions and prevent death. Then try to get the Chalice, to cast Gift of Health or to summon a Faerie Court. Note that the first two are Hard, for good reason - they're very powerful. The Faerie Queen will be disappointingly slow to do the healing, but it should work in the end.

I don't thing a shroud works on a pretender.