Skill 4 is not that good until the final levels when your mana pool stops growing.
King of Minotaurs is much more awesome early on.
6K life with 2 helms? Yes please.
I agree, this is the most difficult Occ build to manage against.
Also, it's 6K HPs with THREE helms (9K mana) on cataract.
So yes please
Note: KoM Occ also quickly becomes BS Occ 2 levels later if you want
4) CL2 + BO2
7) CL3 + BO3
10) CL4 + BO4
Endeavor to play with Occ's balls next I guess
Considering you'll probably never miss getting gold or xp from a creep wave, and you can push nearly anyone off a flag anytime you want, hitting level 15 in a game is also likely going to happen.