I recently switched to Guadian main spec from balance. Oakheart is my 2nd actually useful tank legendary so I can't really replace it (and stats are really good).
I know the item kinda suck but since I mainly do MM+ and don't really raid, would a Survival of the fittest+Bramble build be superior (in terms of DPS and tankiness) to the normal Blood Frenzy Guardian of Elune build in mythic plus ? I feel like Oakheart Puny Quods is really useless without this build.