This is not a budget build, this is Ultimate Nova

• Compatible with Ultimate Umbral Neutral Nova and Ultimate Umbral Slow Nova
• Designed to "leech" in ESO etc.
• Arcane Energize (in conjunction with Primed Flow (PF) and Quick Thinking (QT)), Arcange Guardian and Dispensary often provide enough DR/healing to just be a stationary turret that looks cool (cuz ur [Nova] fashion is cool!) and speeds up the mission.

Note About Arcanes
[Guardian] and Energize. You are getting damaged often so [Guardian] should always be up and Energize is fantastic survivability with QT and PF.

General Use

This build is intended to be used with

• Magus Elevate operator arcane or
• a Life Strike (LS) melee whatever the source is (LS mod, Amalgam Daikyu, w/e)

When your shield gate activates (i.e. when you run out of shield)

• dodge to activate RG (you'll be invulnerable until your shield starts recharging)
• cast pillage to get back to maximum shields/overshields (do note that pillage only restores shields after the expanding wave dissipates)

When Quick Thinking (QT) activates (i.e. you drop to 2hp and your energy pool is used instead)

• dodge to activate RG
• pop your operator outta your warframe and back in OR
• swap to melee while dodging and LS back to full HP

Some Other Options

Augur Message/[Constitution] can be swapped in place of [Adaptation] and RG but this isn't necessarily recommended as RG is incredibly useful providing unique effects (e.g. clearing statuses and providing invincibility) and cannot be replaced. Pros and cons, you should probably test what you like. Consider the following numbers,

• eHP w/ 75% null star DR: 1700
• eHP w/ 75% null star DR, PF & QT: 11804
• eHP w/ 75% null star DR, PF, QT & Guardian: 36845
• eHP w/ 90% null star DR: 4250
• eHP w/ 90% null star DR, primed flow & QT: 29546
• eHP w/ 90% null star DR, PF, QT & Guardian: 92114
• [Adaptation] multiplies eHP by 10 for specific damage types at max stacks

Helminth Ability?

Protea's Dispensary is quite fantastic, here. This is designed to be a support build and not a solo build like slow/neutral but with Dispensary you can mostly just stand still and Guardian, Energize+QT+PF, Adaptation and the health/energy orbs from the Dispensary will keep you at full HP and full energy constantly. You can tank enemies just fine so if you can kill 'em fast enough, you could do some high level soloing if you're into that.

With more of a focus on soloing content, Nidus's Larva or Khora's Ensnare are also interesting choices, here. You have >100% range as-is and swapping [Adaptation] for [Stretch] gives you a rather decent (not great, decent) radius on the grouping effects. The M.Prime speed increase will have enemies just continue to add themselves to your grouping quickly and we all know what to do next! I would swap Arcane [Guardian] for Arcane Avenger, here. We do love some crit chance on AMD, baybee.

Compatible Builds

Ultimate Umbral Slow Nova
Ultimate Umbral Neutral Nova