Rally the troops, Spartan! Lead the onslaught with inexhaustible Shields and Energy, and show the enemy their own deaths!

The Strategy:
First let me say there's two methods of this build that I look forward to trying out. For this version, we'll be Subsuming over Final Stand.

Utilize Axios Javelin to draw enemies in, cast Spectrorage on the bundle, follow up with Tharros Strike to remove their defenses, and dust them for excessive Energy Orbs for you and your squad.

Alternatively, if losing out on Final Stand is not your ideal choice, you can always choose to Subsume over Axios Javelin, which I'll cover here:
https://overframe.gg/build/372655/

Rally Point should be on constantly. You'll restore 108.5 Shield per kill, meaning two kills equals one full restoration of Shields for Shieldgating (Decaying Dragon Key required).

[Brief Respite] and a single Augur mod will also allow you to Shieldgate at any time by casting either Rally Point or Spectrorage, thanks to the tanked Efficiency through [Blind Rage]. This however isn't mandatory, so you can always swap this Aura out for something more your preference.

Despite the massive amounts of Energy you'll gain, it's still advised to use [Primed Flow]; [Styanax]'s base Energy is tight, and you cannot afford to cast both Rally Point and Spectrorage at once; you'll have to [Recover] some Energy first. Using [Primed Flow] sits you on a comfortable 638 Energy reservoir, and if played well, your Abilities should have no issue keeping it mostly full for the duration of your missions.

The empty Arcane slot can be any personal preference. You've got Fire Rate Arcanes, Ability Strength Arcanes, Arcane Eruption, Arcane Arachne, etc. Go nuts.

With 207%+ Ability Strength, Tharros Strike can fully strip armor and shields; with the addition of Archon Shards, you can add Ability Strength and remove Umbral Intensify and/or Augur Secrets if so desired. If/when you reach this point, some flexible options for the build include:

-Cunning Drift
This will max your Range, for all you minmaxers.

-Rolling Guard
Add another layer of defense.

-[Vigorous Swap]
Whether you keep Axios or Final Stand, this mod is able to boost the damage for both. Personally, I'd just use it on the Final Stand build.