What do people think about slightly lowering the base damage of daggers, but granting Back Stabber for free at character creation? Solves two problems at once in my book.
I like that idea, and definitely think it's worth pursuing. It's probably as close as you can get to adding back-stab to daggers and knives. It could open up several paths for Rogues which are not always available. Maybe also slightly lower the critical bonus from Scoundrel?