I'm a first time GM, and I'm running Strange Aeons. I have a mostly RP heavy group, but I have one murder hobo playing an unchained barbarian. It doesn't feel like Book 1 is stacked well combat-wise for such a powerful character. I know the barbarian's think is smash/kill, and I don't want to take that away from the player, but when he never runs out of rage and can kill every opponent in 1 hit, both he and our healer get pretty bored. Simply increasing XP or using the advanced template hasn't seemed to make a difference, and I find that when I do have an advantage, like with swarms, I have to hold back otherwise I will be seen as targeting the barbarian because my other players are squishy. I've thought about introducing more monsters, but then I have to spread them out among the PC and the barbarian will just move from one to the next and 1-hit kill them. I know magic users are coming at the end of book 1, but I don't know how to balance the game to keep the murder hobos involved and the squishy RP players safe at the same time.