It is perfect, and it needs no adjustment. Combos have a good speed, considering the damage. CC the enemies and deal the crazy combo damage. Chase the moving ones with finishers of pillars or molten steel slashes. You have two anti-CCs (purge and Ethereal Escape), and your massive AoE damage just leaves no chance for the enemy. Also, when you are in the demonic form, you gain a lot of extra protection, knockback resistance, fear resistance, armor, and looks. You also have +1650 cold resistance buff that is good sometimes when you know what damage is coming onto you. HoXes are immortal and near impossible to get rid of with their 2 self-resurrections!
I say, pick and praise the HoX!