Unkillable Dwarven Defender
I improved the stats of a DD through multiplayer manipulation of tomes and Black Pits to make a lvl 10 DD with 25/25/25/16/16/16. I imported this character to fight Sarevok on multiplayer and it cannot be killed. I thought this was due to -1 Save vs Death but even with no items (still has slave ring, forgot to take off after Black Pit) and armor this character does not go under 1 health.
Stats with no items are AC 4, Saving Throws 3/5/9/9/6. Is this just a bug and does anyone know what causes it? I haven't done any mods. Irrelevant but humorous, this character's name is Tyrion Lannister.