CapnZapp
Legend
The only problem with this approach is.... It makes Berserk un-fun.The much maligned frenzy does not require an adjustment, to be honest. I played one for an entire campaign and it was fine.
Think of frenzy as a once, perhaps twice, per LR ability.
Having this über ability that you always need to hold back on because you only get the one shot... means in practice you seldom use it, because the day ends before you reach that Obvious End-Game Boss-Fight.
It doesn't help that... The ability isn't all that über. It's good, sure, but not nearly powerful enough to justify such a draconian restriction.
TLDR; Would rather play a Totem or Zealot.
Which pretty much negates the value of arguing Berserker is fine. You CAN argue it, but the net effect remains the same: players simply avoid it.
In order to actually make the subclass see use, more is needed. Basically, you need to accept the PHB contains mistakes and weaknesses.
The much maligned frenzy does require an adjustment, to be honest.