Disease

[Lingchih]

I was just going by the line in the manual that says regeneration decreases the chance of afflictions.

[vfb]

I dunno, it might ... probably the best way to check is to run a bunch of tests casting leprosy on a mix of regenerating and non-regenerating units with identical MR and count how many get diseased.

[JimMorrison]

My guess would be that regeneration simply interacts with the actual affliction mechanic, from damage. Leprosy, being a spell that causes a particular effect, that just happens to be classified as an affliction, is probably unaffected by regeneration.

[Sombre]

Ah but that's because he only has regen in combat, due to only being blessed in combat. Put a shroud on him and you get a different story.