The Drowned Vault

Tempest Barrage's initial radius is fixed at 10m; only the per-impact AoE scales with Range, so Range is far less important than it looks, especially with enemies bunched in tentacles where the AoE already overlaps.

You stack Barrage infinitely on one chokepoint for escalating ability DPS plus viral plus corrosive from Plunder.

Pilfering Swarm is the reason to run this over a plain nuke Hydroid.

1.

Pick a camp spot with one or two chokepoints and cast Tentacle Swarm.

2.

Cast Plunder (3) with a decent crowd nearby, ideally caught in tentacles.

3.

Spam Tempest Barrage (1) on the chokepoint.

Stack it as high as you like.

4.

Cast Tidal Surge (2) to reset the shield gate, go invulnerable, and reposition.

A little Duration for Barrage, Plunder and Tentacle Swarm.

Neutral to positive Efficiency for Barrage spam, helped by Pilfering Swarm's orb drops.

Keep Range 100% to 130% for efficient looting, or 175%+ if you only want to kill and crowd-control (high Range makes tentacles grab enemies outside your area and choke new spawns).

Strength boosts Barrage damage and Plunder's corrosive.

Transient Fortitude is the Strength with Primed Continuity holding Duration.

Primed Flow is the pool.

Equilibrium converts orbs.

Catalyzing Shields locks the gate.

Brief Respite aura feeds it.

Pilfering Swarm, Viral Tempest, Tidal Impunity are the three augments.

Pilfering Swarm becomes Stretch for a non-looting build.

Viral Tempest becomes Stretch or Augur Message if your weapon already applies viral.

Catalyzing Shields drops if you accept smaller gates.

Corrosive Projection in the aura is not useful here, since it does not reduce the corrosive procs needed to full-strip.

Pick one.

Subsume over 2 (stationary) or 4 (mobile).

- Breach Surge takes the Plunder corrosive bonus and double-dips it, strong on passive-stripped enemies.

- Nourish for Barrage-spam energy plus viral on your weapon, letting you drop all weapon elements alongside Plunder's corrosive.

- Roar for Viral Tempest and weapon damage.

Molt Augmented for Strength, Arcane Aegis for lazy shield sustain.

Any.

Vazarin for i-frames.

Zenurik for energy without Energize.

Pirate-themed and self-stripping weapons: Ocucor and Torid both self-strip via Plunder's corrosive while dealing viral.

Kuva Zarr pairs with Tidal Impunity's self-knockdown immunity.

Shield gating off Barrage and Tidal Surge, plus Tentacle Swarm crowd control, plus Tidal Surge invulnerability.

It fails if you stop spamming Barrage and lose the gate refresh, and to toxin.

Pilfering Swarm orbs plus Equilibrium at neutral Efficiency.

Add Zenurik or a Dethcube if it runs thin.

Open tiles with no chokepoints.

Very mobile content.

Bosses.

The fixed 10m Barrage radius means it is a camp tool, not a roaming nuke.

A weapon platform with Roar or Nourish.

An AFK looting build with Quiver.

Strong: strong loot multiplier, self-stripping nuke, cheap on forma, easy to pilot.

Weak: camp-only, boss-blind, Range tuning is fiddly if you both loot and kill.

Farmers who want a looting frame that also clears the room it is looting.