Jacob Lewis
Ye Olde GM
Alright, I can see that. But that is an extreme case. Remind me again, how many weapons are 2d6 damage? And how many people take that particular feat? Even if it's more than average, I do have a suggestion or two for that.Its also the way it interacted with 2d6 weapons. You have to roll 4 dice and its probably a huge damage nerf. Also raises issues with the great weapon fighter style so you would be rolling damage with disadvantage and rerolling 1's. Its a pain in the ass. I asked my players and they preferred the -1/-1. They liked the idea of advantage or disadvantage on damage rolls just not all of the time.
1) Instead of doubling the number of damage dice rolled, just add one more and discard the lowest. It works for any weapon regardless of how many dice rolled, and doesn't nerf the expected average too bad. Also, take the results after rerolling 1s if you're keeping that feat in play.
2) Change the damage die to d12. You're going this far with changes, why not make changes that work better for all other changes? That's why I would do, but your game and your group. (Kudos for letting your players vote, btw.)
Anyway, we can go back and forth all day with examples and fixes on which way to go. My version of Dark Sun is much different than what most would expect, which is essentially D&D dressed up for the apocalypse. I prefer a version that gets away from the standard D&D tropes and focuses on the survival aspects of the game. Limited resources, impossible odds, alien world. And of course, mechanics to emphasize it better. I just don't have the time.