Endgame5–6 FormaEndgameMedium confidenceSteel PathShards optional

Kullervo — Red Crit King

Endgame build. High Strength Wrathful Advance. Flat melee crit until everything is red. This is 2026 Kullervo.

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

endgame / endurance melee, Influence weapons, anyone who picked him to press 1

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 endgame / endurance melee, Influence weapons, anyone who picked him to press 1

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

Play this in Steel Path

Wrathful's crit is flat and huge. Building more crit chance on the melee is often wasted — build crit damage.
No shields means Overguard is not optional. 2 on cooldown whenever the yellow is gone.
Casting speed shards make 1 a machine gun. That is the feel you want.

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 (the actual build) — A high-crit-damage melee. Blood Rush is optional — Wrathful is your crit chance. Organ Shatter, Gladiator Might, primed elementals, Melee Influence if Electricity. Violet crit-damage shards live here.

Alternative if…

Star Chart only → First Betrayal
New account or low investment → First Betrayal
This is too much Forma / cost → Red Crit King — Optimised
You wanted the ability loop, not guns → First Betrayal

Instead: First Betrayal Instead: First Betrayal — Star Chart Instead: Red Crit King — Steel Path Instead: 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 0/6 · required — 6 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: 6 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.

TodayPlay First BetrayalThe Starter is the loadout you can actually take into a mission tonight.
NextGet Steel ChargeInvasion / Nightwave
After that5–6 FormaOne slot at a time. Rank 30 after each polarize.
LaterTauforged Violet · Melee crit damageHelminth and shards are the last rungs. They are not the Starter.
FinalRed Crit King — EndgameEndgame · Endgame · 5–6 Forma

Helminth & shards

What to put on the body

3 Tauforged Tauforged Violet · Melee crit damage — You already have chance. You want multiplier.Archon locked
2 Tauforged Crimson · Strength — Even redder Wrathful.Archon locked

Tonight

What is actually up

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

30 minutes
Farm Steel Charge
One named gap. Invasion / Nightwave
60 minutes
Steel Charge, then Forma
Finish the missing named card, then spend a Forma if a polarity is still fighting you.
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.

Farm Steel Charge
Invasion / Nightwave

Who this is for

Play this build from zero

Steel Path. You want red crits on a stick.

Time to a playable copy: After Blind Rage, a real melee grid, and preferably violet shards.
First mission to practice in: SP Exterminate. Recast 1 before the buff dies.

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

Red loop

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

1Recompense (2) off spawn so you have Overguard.
2Wrathful Advance (1) into the pack. Melee until the buff is about to die, then 1 again.
3Collective Curse (3) a dense tile so one heavy is a room.
4Storm of Ukko (4) is optional flavor. The blade is the 4.

First mission — press these buttons

1
2 then 1 then swing
1
Yellow bar, then teleport, then hold melee.
You will know it worked when: Red crits. If you see yellow, Strength is still low.
2
Recast 1 in the next room
The buff is Duration. It is not a passive.

Common mistakes

Letting Overguard sit at 0 while you ADS a gun
You have no shields. This is a melee frame. Swing or recast 2.

When this feels easy

1Three violet melee shardsChance is solved. Multiplier is the build.

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.

Frame

kullervo

Mods

Later

Unlocks

1●kullervoframe
2○Steel Chargemod
3○Power Driftmod
4○Blind Ragemod
5○Transient Fortitudemod
6○Umbral Intensifymod
7○Primed Continuitymod
8○Stretchmod
9○Equilibriummod
10○Rolling Guardmod
11○Arcane Furyarcane
12○Molt Augmentedarcane
13○Tauforged Violet · Melee crit damageshard
14○Crimson · Strengthshard
15○Steel Pathunlock
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

Steel Charge
missing · Invasion / Nightwave
Power Drift
missing · Unlock Lua
Blind Rage
missing · Run Orokin Vaults
Transient Fortitude
missing · Same vaults as Blind Rage
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
Panic when Overguard is down and Recompense missed.

Recommended

Arcane Fury
missing · Eidolon / trade
Melee damage. The blade is the nuke.
Molt Augmented
missing · Unlock the Zariman
Strength stacks. Recast Wrathful after it ramps.

Optional

Tauforged Violet · Melee crit damage
missing · EDA
You already have chance. You want multiplier.
Crimson · Strength
missing · Netracells / Archon Hunt / Bird 3
Even redder Wrathful.

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 Watch YouTube

Strength

~280–350% (flat crit ≈ 2× Strength; 300% STR is comically red)

Duration

155–200% so the window lasts a room

Range

145–175% teleport distance

Invert tap/hold. Recast Wrathful before the buff dies. Recompense whenever Overguard cracks.

From the mods

Live power

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

Strength: 313%
Duration: 128%
Range: 145%
Efficiency: 45%
Energy: base
Capacity: 54 / 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
ExilusPower DriftOrokin Vaults / Lua
1Blind RageOrokin Vaults
2Transient FortitudeOrokin Vaults
3Umbral IntensifyThe Sacrifice
4Primed ContinuityBaro Ki'Teer
5StretchEnemy drops
6EquilibriumThe New Strange
7Rolling GuardPanic when Overguard is down and Recompense missed.Arbitrations

Slot	Mod	Source
Aura	Steel Charge	Invasion / Nightwave
Exilus	Power Drift	Orokin Vaults / Lua
1	Blind Rage	Orokin Vaults
2	Transient Fortitude	Orokin Vaults
3	Umbral Intensify	The Sacrifice
4	Primed Continuity	Baro Ki'Teer
5	Stretch	Enemy drops
6	Equilibrium	The New Strange
7	Rolling Guard Panic when Overguard is down and Recompense missed.	Arbitrations

Melee (the actual build)

A high-crit-damage melee. Blood Rush is optional — Wrathful is your crit chance. Organ Shatter, Gladiator Might, primed elementals, Melee Influence if Electricity. Violet crit-damage shards live here.

Arcanes

Arcane Fury

Melee damage. The blade is the nuke.

Eidolon / trade

Molt Augmented

Strength stacks. Recast Wrathful after it ramps.

Zariman

Archon shards

1Tauforged Violet · Melee crit damageYou already have chance. You want multiplier.3 Tauforged · EDA
2Tauforged Crimson · StrengthEven redder Wrathful.2 · Netracells

#	Shard	Qty	Source	How
1	Tauforged Violet · Melee crit damage You already have chance. You want multiplier.	3 Tauforged	EDA
2	Tauforged Crimson · Strength Even redder Wrathful.	2	Netracells

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