Photon Strike is a decent ability that's usually invalidated by redundancy in [Vauban]'s kit. This build attempts to abuse it's unique asset to nuke small rooms for free. We subsume an ability that increases it's damage.

Roar is chosen because it's the easiest ability to weave into the build. [Rage] form Rest & [Rage] also works but requires you to spam it on every group. If you choose [Rage] ensure that your primary emission color is set correctly so that it's equipped before the mission.

Tesla Nervos is the only choice to replace on this build. Minelayer gives you additional damage and CC. Bastille is needed to strip armor from problem enemies.

Strength is bumped up to 250%+ so that Bastille completely strips armor in 4 seconds. 200% is fine if you're okay with waiting another second. Significantly below that isn't suggested. [Blind Rage] is intentionally lowered a few ranks as we don't need over 250% and it gives you a bit of Efficiency back.

Range is boosted so that Bastille can hit an entire small room but it has little affect on Photon Strike as you're already going to hit grouped up enemies inside Vortex or Tether Coil.

Photon Repeater saves you a lot of energy but it has one problem built into the mod. There's a 1-2 second delay for it to register that you've hit enough enemies to proc the free cast. This forces you to wait a bit after each cast and stops you form spamming the ability.

[Aero Vantage] is a flex exilus that you can replace with anything that fits. We run it here because it allows you to more easily stay in the air spamming Photon Strike as the augment has a delay after each cast and you're forced to aim glide for a moment in between.

Arcane Aegis is run for additional survival when it procs. It can be replaced by any other arcane to suit your playstyle.