[Baruuk] is basically John Wick. He tries to be a nice guy but when you insist on killing his puppy he starts to lose his shit. Take damage to lower your Restraint meter. Use Larva (subsumed on 1) to gather enemies up in a nice clump. Use Lull (2) to put enemies to sleep within 8.5 meters - every enemy put to sleep erodes restraint. Use Desolate Hands (3) to summon daggers to give you up to 90% damage reduction which also seek out and destroy enemy guns which also erodes restraint. When your Restraint is low, use Serene Storm (4) to absolutely slaughter all enemies in sight with your [Desert Wind] (exalted weapon). Uses [Reactive Storm] augment to add tons of status chance to your 4 and make it deal the most effective damage type to any enemy hit.
Uses Arcane Energize to keep up with energy usage and Arcane Avenger for extra crit chance for maximum pain infliction.
This build is extremely tanky but also can deal large amounts of damage (see my [Desert Wind] build for synergy!).