Should frenzy be combined with Blood hunger and I create a whole new skill for frenzy?
I think combining the two skills is fine.
would this combined skill be Op, or a 1 point wonder, or just right?
I think it entirely depends on the numbers. It's hard to tell if a skill will be OP before it even exists. As for 1 point wonders, proper scaling should prevent that.
if it is not combined. What can we do to add to frenzy without rewriting it, adding something and tweaking what is there.
I think the Frenzy mechanic of 100% Crits makes any build that consistently goes into Frenzy basically ignore any kind of Crit Chance gear. Personally, I think Frenzy should not give 100% Crit chance. Perhaps a viable change would be to swap the buffs from Rampage with Frenzy? (i.e. Frenzy gives speeds boost, and Rampage gives Crit chance, also whoops wrong topic
and if it is combined, I will want to make an auto attack passive to help the autoattack builds out!
The only affixes (to my knowledge) that affects auto attacks, but don't affect any other skills are:
Life / Mana Steal (of any kind, although Frost Breath benefits from this)
On Hit procs (which aren't used at all in vanilla TL2 except for Engineer's Supercharge Weapon)
% damage to Secondary Targets (the affix no one ever cares about?)
Something based on an On Hit proc could be viable.