Build:Sanguine Sweeps

Full Build Details
Use whatever armor/helmet/boots/pack you want. Recommended non-breakthrough passives are Master of Motion, Fitness, Armor Training, and Efficiency. Your choice of faction shouldn't make or break the build, though the Holy Mission's passive rewards seem like far better options than the rest even if Exalted does eventually reduce your Max Health by a whopping 90% after 30 days. '''Shamanic Resonance may be swapped for Daredevil to grab the T3 skills in Speedster, depending on if you value doubled Discipline and Rage effects or lower cooldowns, as we don't use any of the T3 skills in Cabal Hermit. Feather Dodge is also technically negotiable if you really manage your stamina and always drop your pack, but personally I grab it because I'm lazy about always dropping/picking up my pack (especially since they've gotten lost more than once down a pit) and I like even lower stamina costs.'''

Best to open with your two boons, baiting openings for the Probe chain (three hits with the evolving Probe to inflict Confusion) to knockdown with Sweep Kick and closing in to land both hits of moon swipe. Use Mana Ward and Counterstrike as needed to deal with problematic attacks you can't easily avoid. Be mindful that using Mana Ward to avoid damage from a hit does reduce your Alertness by 1.

When first gaining mana, 2 points is recommended, 3 at most. Mana Ward is cheap and your only spell, so astral potions and other mana-restoration consumables should be packed light in your inventory if at all. Your 8th quickslot is open for any item you use often in combat, maybe endurance potions or life potions for quick recovery or varnish or rags for some more elemental damage tacked on top.

Having Crumbling Anger enchanted on your Sanguine Cleaver lets you apply a number of DoTs rather quickly without using a lot of stamina or mana even if they might not all be the most effective against all enemies you'll encounter, and lends itself to playing more a bit more defensively (or just running away to break aggro and recover, don't worry they should only heal if you rest) after a bit of aggression to trigger them.

EDIT (JAN 15 2021): After the release of The Three Brothers DLC, you may optionally use Splitter from the Weapon Master skill as a replacement for Moon Swipe. Brawns and Cruelty passives from the Specialist skill are also useful to purchase for even more damage from your combos and DoT statuses.