Dolurrh, Realm of the Dead jelly cake protects one from "energy drain and death effects". What exactly are these, and what creatures inflict them? I ate a Dolurrh cake before final battle in Chamber of Insanity (boss is a spectre IIRC) and very nearly got killed anyway, but no level draining occurred. Against wraiths I never used Dolurrh cake, and did not notice anything beyond plain damage.