Imo its a no-brainer, always use the onyx ring (i) for added overall defence and attack bonus no matter what you or your opponent are using. only reason to use a frem is zerk if you dont need accuracy
Well I wanted a more definite answer. I had known all that, but I'm trying to justify the removal of my Berserker (i). When is it appropriate to have Berserker. Slaying perhaps, but anything else?