This build turns [Styanax] into one of the most powerful energy batteries in the game and can generate a ridiculous amount of overguard for you and your allies. As a bonus to being one of the best support frames (IMO) this build can output a stupid amount of decently strong bleed procs. This build can handily take you through all the way to Netracells. I haven't tested This against level cap enemies, but it handily takes me up to lvl 2000 enemies.

[Intrepid Stand]
This mod is absolutely necessary.

Strength
With [Blind Rage] and Molt Augmented, Tharros Strike gets up to 100% armor strip after just 5 kills. If you feel like you want the immediate armor strip you can slot in a single red archon shard on ability strength to not have to get the initial kills. We run [Precision Intensify] to both increase damage, as Final Stand will be your primary damage output, and increase the gains from Intrepid Stand. With both Nourish and Rally Point active, you'll be regenerating ~18 energy/s without stacks of molt augmented. (I am unsure of the exact number with full stacks but my math says around 28) Nourish also gives you decent amount of bonus damage, but dont get your hopes too high for the viral procs. From my testing it seems that the slash procs are forced and not based on status chance, the javelins seem to actually have a very low status chance which means there won't be many viral procs going around. However, Nourish still gives your allies extra viral damage which can cause them to apply a good amount of viral procs.

Range
Range increases the radius Nourish and Rally Point go out to allies. More importantly it increases the explosion radius of Final Stand and the size of the cone for Tharros Strike. This means you can armor strip more enemies and do more damage.

Duration
Keeps you in the fight longer. I run 4 red archon shards set to duration on my personal set up because I like not having to cast my abilities. This isn't entirely necessary though because Nourish and Rally Point should together generate plenty of energy for you to recast. Duration also increases the time Final Stand lasts and subsequently the amount of javelins thrown.

Arachne
This give you percentage increases to Final Stand's damage. Be sure to keep an eye on your buff bar and frequently wall latch. This is the meat of your damage

[Corrosive Projection]
Less armor = more damage. At very high levels your damage primarily comes from slash procs so this isn't super necessary, but it is nice to see a slightly bigger damage number without having to armor strip. There are other viable options like Energy Siphon to give even more ridiculous energy/s or even [Aerodynamic] if you feel like adding more forma to the build.

Airborne Damage Reduction
Armor does not effect Overguard, this does. You're always gonna be airborne casting Final Stand anyway. Equip a polearm with [Boreal's Contempt] to get more.

Companion
Highly recommend using a companion that can prime viral like [Diriga]. I use my trusty [Panzer Vulpaphyla] named Ted Kaczynski: he's the goodest boy. Also [Intrepid Stand] is great at keeping companions alive as it will also give them overguard.

For Netracells and Arbitrations
I have noticed that, if I am not the host of an arbitration, the arbitration drones will sometimes be able to be damaged and killed by Final Stand, do not rely on this as it will not always happen and I have never seen it happen when I am the host (this is also subject to a bug fix but I have not reported it). Be sure to use Arcane Arachne when dealing with arbitration drones and the flying arm murmurs as they are immune to Final Stand and if you are primarily using Final Stand you will not have arcane stacks for your weapons. With Arachne I have no need to modify my gun builds to not rely on stacks like Deadhead and Merciless.