ToME: the Tales of Maj'Eyal

What counts as natural healing for the purposes of Curse of Death? Just innate regen, regen infusions, things like Bloodbath’s regen effect, etc?

Curse of Death stops your life regen which usually adds to your current life at the beginning of every game turn. Regeration infusion and bloodbath increase your life regen rate, thus have no real effect under Curse of Death. You may open your character sheet to check your life regen rate, which is also displayed in your hp bar, then you cound figure out whether a talent/effect will be blocked by Curse of Death. Usually any non-direct healing that is not shown in combat log will get blocked.

Very cool, thank you. Was looking at the defiler escort options and wondering whether Curse of Death would be worth grabbing as a default for certain difficult-to-kill enemies, I'm leaning towards yes.