The damage bonus from this guild is invaluable. But another huge perk is that you get Bash level 15. This appears to greatly increase success with spellcasting in combat, as you have to bash your enemy away before casting.
A pause from Barbarian's Guild to share a message from past years:
Today is: 17th January (GMT), in history on the 17th of January, 1845 AD the following birth happened:
Lucas Lindeboom: Dutch vicar / evangelist (Vredebond)