I went for more of a traditional build setup similar to what I had for [Xaku]. I felt like Duration, Range, and Strength should be a focus. However because of my decision with mods and forma there isn't a whole lot of room for changes.

Why Umbral mods?

A few reasons I did this.
1) I was carrying too many.
2) wanted the bonus health/strength from umbral mods as this is my main survival.
3) didn't fully consider [Archon Vitality] at the time.

Why no [Adaptation], Health Conversion, or Rolling Guard?

I don't think Adaptation or Health Conversion is worth it; only garnering an additional 5-9% dmg reduction.
I've never really been a fan of shield gating nor do I perform long endurance runs.
That polarity is still available so if you get more benefit from those mods instead of range then go for it.

Polarities

I used a Universal Aura slot so that I could run and playtest with Growing Power, Energy Siphon, Brief Respite, etc.
I choose to leave an un-polarized slot in case of helminth mods, augments, etc. However I may forma a Naramon (dash) polarity for [Archon Stretch].

Archon Shards

Some of her abilities felt a bit slow and therefore slotted in Casting Speed. Duration keeps Preserving Shell and Prismatic Gem up longer.

2 Casting Speed shards
3 Duration shards