Empower: replaces Evade. You only need to cast this before you use Serene Storm, which is once per battle unless you fall down a hole or get debuffed.
Lull: Minimum negative duration and good range lets you hit entire rooms over and over again to easily erode Restraint and maintain 100% uptime. Since duration is low, it doesn't affect the [Flow] of combat, enemies merely get staggered, if at all.
Desolate Hands: Your DR bread and butter. Helps erode Restraint semi-passively.
Serene Storm: What you're here for. [Reactive Storm] assists with damage (by matching weaknesses) and procs.

Natural Talent helps with Lull but if you get debuffed, Serene Storm will still take forever to put away - it's the only time you are ever vulnerable. Be careful around Stalker, Violence and Demolysts - bring a gun with a Dexterity Arcane and preferably the [Paracesis] since you won't be using your regular melee weapon otherwise anyway.
[Primed Sure Footed] for the flex.

Whereas most builds use [Adaptation], [Umbral Fiber] protects against the initial, more damaging bursts before [Adaptation] gets a chance to build up. In conjunction with the already respectable DR stacking from Desolate Hands and Serene Storm, it allows plenty of leeway to trigger Magus Repair when you're in danger.

Use [Amalgam Serration] for additional movement speed.
Use Operator Magus Repair whenever you need health and Void Dash for maneuverability.
Use Adarza Kavat with Cat's Eye and Tek Enhance for red crits. Don't bother modding it for any sort of damage - go for pure survivability so you won't have to revive it too often. Suggested setup: https://overframe.gg/build/184683/

Focus School: Zenurik for Energy Pulse, but you will very rarely be low on energy. [Energizing Shot] for your secondary is also an option.
Having 0 energy does NOT turn off Serene Storm as it functions purely based on the Restraint meter. Turning off Serene Storm to drop an Energy Pad can be a risky move unless you have some Knives up, since you lose 40%DR.

Desert Wind build here: https://overframe.gg/build/184537/

Go forth and punch.