Would be interested in modding this to soften the RNG. If you doubled the number of attacks but not their damage, and doubled all HP, healing, and other relevant effects, I think that would leave the game basically the same except for having more consistent (centrally clustered) outcomes.
A 2d6 compared to a 20 is a lot more volatile than a 4d6 compared to a 40.
A 2d6 compared to a 20 is a lot more volatile than a 4d6 compared to a 40.