Here is a rule I am considering changing, after discussion with the Norns and the Lady.
Under this proposed rule, the Culet Tier would have an additional weakness. A roll of 19 or of 20 would be sufficient to damage them or even to kill them, effectively doubling the slim chances. They would still get the saving grace of trying to roll an 11 or higher to take a reduced penalty (such as disfigurement instead of death).
Pros: More satisfaction, less attempts need to be made. Favors humans. May increase reward of good play.
Cons: Dehumanizes nonplayer characters run by the DM or by true-tier gods and makes Culet gods less realistic. May allow for sloppier play.
Thoughts?