Kullervo
Kullervo builds
Slow Betrayal
Endgame5 FormaEndgameMedium confidenceSteel PathHelminthShards optional

Kullervo — Slow Betrayal

Endgame build. Gloom over Storm of Ukko. A slow aura on a no-shield melee monster. Volatile Recompense for extra Overguard uptime.

Codex Checked · Compared against current game data for this update. · Update 43.5 · 5 Sept 2026 · PC · Current

Solo Steel Path, endurance, people who want the room to crawl while they teleport-stab

Wrong drop or mechanic?

Don’t build this yet

First Betrayal first

This loadout sits at Endgame. It wants Forma, Helminth, or shards you may not have. Play the Starter until those systems are open — then this page is the upgrade, not the homework.

Open First Betrayal

Why this build?

Endgame for Solo Steel Path, endurance, people who want the room to crawl while they teleport-stab

Health: Not yet — Helminth, Steel Path, or Archon Hunts still closed. Play the Starter.

Play this in Steel Path
  • Gloom is the Helminth tank button. Kullervo already wanted to be inside the pack.
  • Volatile Recompense is the 2025–2026 Overguard augment. Less panic-2.
  • You still have no shields. Gloom is not Iron Skin. Keep the yellow bar.

Don’t use this for: Star Chart only · new accounts · players without Helminth

Specialised investment for hard content

You don’t need the shards to run the loop. They are a later ceiling, not a gate.

Bring: Melee — Same crit-damage blade as Red Crit King. Gloom leeches off every swing.

Alternative if…

Instead: First BetrayalInstead: First Betrayal — Star ChartInstead: Red Crit King — Steel PathInstead: Red Crit King — Optimised

My test

Did this still work for you?

Your note, in this browser. Separate from Codex verification — the stamp on the card is editorial, this is yours.

Readiness

Inventory unknown

Not checked — add your collection. You have not failed a test.

  • Required mods 0/9 · required — 0/9 named
  • Forma 0/5 · required — 5 on the card. Codex does not track installed Forma.
  • Helminth 0/1 · required — Subsume Gloom (Sevagoth)
  • Arcanes · recommended — 0/2 recommended
  • Shards · optional — Optional unless the card says a breakpoint

Investment: 5 Forma · Reactor · Helminth (Gloom (Sevagoth)) · 2 shards · 3 specialised mods. Typical farm ~4–6 hours. Trade if a route is vaulted.

Codex Checked · Compared against current game data for this update. · Update 43.5 · 5 Sept 2026 · PC · Current

Medium confidence. A solid recommendation with more situational dependencies. Confidence is not verification. Verification is separate: Codex Checked against Update 43.5.

Plan

Today → next → later

Inventory unknown — mark “I own this” on a few mods. Until then this is a plan, not a score of zero.

  1. TodayPlay First BetrayalThe Starter is the loadout you can actually take into a mission tonight.
  2. NextGet Growing PowerThe Silver Grove quest
  3. After that5 FormaOne slot at a time. Rank 30 after each polarize.
  4. LaterCrimson · StrengthHelminth and shards are the last rungs. They are not the Starter.
  5. FinalSlow BetrayalEndgame · Endgame · 5 Forma

Farm the gap

Helminth & shards

What to put on the body

Gloom (Sevagoth) over Storm of Ukko (4)

4 is flavor. Gloom is a 95% slow plus lifesteal on every melee hit. You already stand in the pack. Volatile Recompense keeps Overguard rolling without babysitting 2.

Helminth is locked. Tick it on Progress before you subsume.

  • 2–3 Crimson · Strength — Gloom cap and Wrathful.Archon locked
  • 2 Violet · Melee crit damage — The blade.Archon locked

Tonight

What is actually up

30 minutes, one hour, or two — matched to this loadout, not a dump of the Origin System.

  1. 30 minutes

    Farm Growing Power

    One named gap. The Silver Grove quest

  2. 60 minutes

    Growing Power, then Forma

    Finish the missing named card, then spend a Forma if a polarity is still fighting you.

  3. 120 minutes

    Subsume Gloom (Sevagoth)

    If you are logging off after this, stop at the named component. Do not start a second Forma session tired.

Who this is for

Play this build from zero

Solo Steel Path. You subsumed Gloom and bought Volatile Recompense.

Time to a playable copy
After the 4 subsume and the augment.
First mission to practice in
A long SP Survival. The room should crawl and you should not go down.

2 button drills · 14 parts · tick the lists as you go

Before you start

0 of 3 done

Put it on the Warframe

0 of 4 done

Keep this up

Gloom loop

Pocket card. Stick this on a second screen; the long version is the mission below.

  1. 1Gloom (4). The room thickens.
  2. 2Volatile Recompense (2). Daggers orbit. Overguard ticks in.
  3. 3Wrathful Advance (1) and melee. Every swing leeches.
  4. 4Curse (3) when you want one swing to be a room.

First mission — press these buttons

  1. 1

    Gloom on, daggers on

    4

    4 then 2. Walk into them.

  2. 2

    Teleport-stab

    1

    1 and melee. Leech plus Overguard plus red crits.

Common mistakes

  • Gloom without Recompense

    Slow is not a health bar. 0 shields. Cast 2.

When this feels easy

  1. 1Persistence as backupWhen the yellow bar pops, you want a second plan.

Parts checklist

0 of 14 owned. Tap How on anything you still need.

Dependencies

18 dependencies

Frame → mods → unlocks. Tick Collection and Progress. This is a decision graph, not a wiki tree.

  1. 1●kullervoframe
  2. 2○Growing Powermod
  3. 3○Cunning Driftmod
  4. 4○Volatile Recompenseaugment
  5. 5○Blind Ragemod
  6. 6○Umbral Intensifymod
  7. 7○Primed Continuitymod
  8. 8○Stretchmod
  9. 9○Equilibriummod
  10. 10○Rolling Guardmod
  11. 11○Arcane Persistencearcane
  12. 12○Arcane Furyarcane
  13. 13○Crimson · Strengthshard
  14. 14○Violet · Melee crit damageshard
  15. 15○Gloomhelminth
  16. 16○Helminth · Gloom (Sevagoth)unlock
  17. 17○Steel Pathunlock
  18. 18○Archon Hunts (shards optional)unlock

Depends on

What this loadout needs

Required is a gate. Recommended is a ceiling. Optional is a later farm — don’t stall the card for it.

Required

  • Growing Power

    missing · The Silver Grove quest

  • Cunning Drift

    missing · Lua Halls of Ascension

  • Volatile Recompense

    missing · Warframe augment syndicates · 25,000 standing

    Daggers orbit and keep hitting, feeding Overguard and Blast. Less recasting of 2.

  • Blind Rage

    missing · Run Orokin Vaults

  • Umbral Intensify

    missing · Finish The Sacrifice

  • Primed Continuity

    missing · Wait for Baro Ki'Teer

  • Stretch

    missing · Enemy drops

  • Equilibrium

    missing · The New Strange / drops

  • Rolling Guard

    missing · Arbitrations

  • Gloom

    missing · Helminth

    4 is flavor. Gloom is a 95% slow plus lifesteal on every melee hit. You already stand in the pack. Volatile Recompense keeps Overguard rolling without babysitting 2.

Recommended

  • Arcane Persistence

    missing · Finish The Old Peace

    Backup when Overguard cracks. Armor shard helps the 700 line.

  • Arcane Fury

    missing · Eidolon / trade

    Melee damage.

Optional

Helminth

Subsume Gloom (Sevagoth) over Storm of Ukko (4)

4 is flavor. Gloom is a 95% slow plus lifesteal on every melee hit. You already stand in the pack. Volatile Recompense keeps Overguard rolling without babysitting 2.

Strength

~200%+ (Gloom slow cap + Wrathful crit)

Duration

175%+

Range

160–190% Gloom aura and Recompense daggers

200% Strength caps Gloom. Extra Strength still fattens Wrathful. Volatile Recompense is the usual pairing.

From the mods

Live power

Additive from max-rank Codex mods. Efficiency clamped 15–175%. Umbral set is +11% Strength per extra piece.

Strength
243%
Duration
155%
Range
160%
Efficiency
45%
Energy
base
Capacity
51 / 67

1 Umbral piece

Open slots

Weapon HUD

Arsenal numbers

Base × damage mods × crit expectation × fire rate × multishot. No faction, no quantization. Galvanized kill stacks are a slider, not assumed.

Damage
35
Crit
12% × 2.00
Status
26%
Fire rate
9.58
Multishot
1.00
Avg hit
39
Arsenal DPS
376

Toggle common mods

Kullervo mods

  • AuraGrowing PowerSilver Grove
  • ExilusCunning DriftLua Halls
  • 1Volatile RecompenseDaggers orbit and keep hitting, feeding Overguard and Blast. Less recasting of 2.Warframe augment syndicates · 25k
  • 2Blind RageOrokin Vaults
  • 3Umbral IntensifyThe Sacrifice
  • 4Primed ContinuityBaro Ki'Teer
  • 5StretchEnemy drops
  • 6EquilibriumThe New Strange
  • 7Rolling GuardArbitrations

Melee

Same crit-damage blade as Red Crit King. Gloom leeches off every swing.

Arcanes

Arcane Persistence

Backup when Overguard cracks. Armor shard helps the 700 line.

1999 / trade

Arcane Fury

Melee damage.

Eidolon / trade

Archon shards

  • 1Crimson · StrengthGloom cap and Wrathful.2–3 · Netracells
  • 2Violet · Melee crit damageThe blade.2 · EDA
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