Kullervo
Kullervo builds
Shared Sin
Endgame4–5 FormaEndgameMedium confidenceSteel PathBossesShards optional

Kullervo — Shared Sin

Endgame build. Collective Curse links the room. Damage one, hurt all. Wrathful still paints the crit. Melee becomes a tile nuke.

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

Dense Steel Path, Influence melee, people who want one swing to clear a hallway

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 Dense Steel Path, Influence melee, people who want one swing to clear a hallway

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

Play this in Steel PathPlay this in Bosses
  • Curse is the multiplier that turns single-target melee into a hallway.
  • Overextended looks ugly. Linked count is the damage.
  • This is denser-tile Kullervo. Take Red Crit King to a boss.

Don’t use this for: Star Chart only · new accounts

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 (AOE / Influence) — An Electricity melee with Melee Influence, or any wide melee. Curse shares a portion of your damage to every other cursed target. One heavy is a chain reaction.

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 · optional — Not required
  • Arcanes · recommended — 0/2 recommended
  • Shards · optional — Optional unless the card says a breakpoint

Investment: 5 Forma · Reactor · 2 shards · 4 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 Steel ChargeInvasion / Nightwave
  3. After that4–5 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. FinalShared SinEndgame · Endgame · 4–5 Forma

Helminth & shards

What to put on the body

  • 2 Crimson · Strength — Share percent and Wrathful.Archon locked
  • 2 Violet · Melee crit damage — The one swing that feeds the share.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 Steel Charge

    One named gap. Invasion / Nightwave

  2. 60 minutes

    Steel Charge, then Forma

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

  3. 120 minutes

    One Archon Hunt

    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

Dense tiles. You want one heavy to be a hallway.

Time to a playable copy
After Overextended and a wide melee.
First mission to practice in
SP Survival. Curse a clump, heavy the biggest one.

2 button drills · 13 parts · tick the lists as you go

Before you start

0 of 3 done

Put it on the Warframe

0 of 5 done

Keep this up

Curse loop

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

  1. 1Collective Curse (3) the tile. You should see chains.
  2. 2Wrathful Advance (1) onto the heaviest body.
  3. 3Heavy attack or Influence proc. The rest of the chain eats a copy.
  4. 4Recompense (2) whenever Overguard is gone. You still have no shields.

First mission — press these buttons

  1. 1

    3 until you see chains

    3

    If only two enemies linked, walk up and recast on a real pack.

  2. 2

    Teleport and heavy

    1

    The rest of the chain should drop.

Common mistakes

  • Cursing a sniper across the map with 100% Range

    You linked nobody. Overextended exists.

When this feels easy

  1. 1Range shards if you dumped too much StrengthLinked count is damage.

Parts checklist

0 of 13 owned. Tap How on anything you still need.

Dependencies

16 dependencies

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

  1. 1●kullervoframe
  2. 2○Steel Chargemod
  3. 3○Cunning Driftmod
  4. 4○Blind Ragemod
  5. 5○Umbral Intensifymod
  6. 6○Overextendedmod
  7. 7○Stretchmod
  8. 8○Primed Continuitymod
  9. 9○Primed Flowmod
  10. 10○Equilibriummod
  11. 11○Melee Influencearcane
  12. 12○Molt Augmentedarcane
  13. 13○Crimson · Strengthshard
  14. 14○Violet · Melee crit damageshard
  15. 15○Steel Pathunlock
  16. 16○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

Recommended

  • Melee Influence

    missing · Deep Archimedea / trade

    Electricity melee pops the cursed room. Slot it on the blade.

  • Molt Augmented

    missing · Unlock the Zariman

    Strength.

Optional

Watch it played

YouTube for this loadout

All videos
The kitTheKengineer · Jun 2023

Kullervo - all CANNON, not glass

Wrathful Advance, Collective Curse, Recompense Overguard. The melee teleporter.

Play in WatchYouTube

Strength

~220–280% (share percent + Wrathful crit)

Duration

175%+ so the links last

Range

175–220% so the curse is a room

Range is who gets linked. Duration is how long the share lasts. Strength is the share ratio and the crit.

From the mods

Live power

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

Strength
183%
Duration
155%
Range
250%
Efficiency
45%
Energy
+275%
Capacity
53 / 69

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

  • AuraSteel ChargeInvasion / Nightwave
  • ExilusCunning DriftLua Halls
  • 1Blind RageOrokin Vaults
  • 2Umbral IntensifyThe Sacrifice
  • 3OverextendedCurse radius. Strength shards pay it back.Orokin Vaults
  • 4StretchEnemy drops
  • 5Primed ContinuityBaro Ki'Teer
  • 6Primed FlowBaro / relics
  • 7EquilibriumThe New Strange

Melee (AOE / Influence)

An Electricity melee with Melee Influence, or any wide melee. Curse shares a portion of your damage to every other cursed target. One heavy is a chain reaction.

Arcanes

Melee Influence

Electricity melee pops the cursed room. Slot it on the blade.

1999 / Duviri / trade

Molt Augmented

Strength.

Zariman

Archon shards

  • 1Crimson · StrengthShare percent and Wrathful.2 · Netracells
  • 2Violet · Melee crit damageThe one swing that feeds the share.2 · EDA
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