Harrow — Lasting Vow
Steel Path build. Covenant invuln, then a crit window that Lasting Covenant extends on headshots. Condemn is the shield reload. This is 2026 Harrow. This is the peak you can run the day Steel Path unlocks — galvanized / arcanes, no Helminth.
Codex Checked · Compared against current game data for this update. · Update 43.5 · 5 Sept 2026 · PC · Current
Steel Path Star Chart, Circuit, first Archon. Helminth is the next card.
Wrong drop or mechanic?
Why this build?
Steel Path for Steel Path Star Chart, Circuit, first Archon. Helminth is the next card.
Health: Not yet — Helminth, Steel Path, or Archon Hunts still closed. Play the Starter.
- Covenant is Harrow's identity. Lasting Covenant is how the window becomes a mission-long buff.
- You have to eat damage during the invuln. Peek. Don't Covenant in a closet.
- Headshots are the recast. Body shots are a wasted window.
Don’t use this for: Star Chart only · loadouts that need Helminth
Stronger mods, Arcanes, real synergy
You don’t need the shards to run the loop. They are a later ceiling, not a gate.
Bring: Crit / headshot guns — Snipers, Incarnons, anything that can headshot. Lasting Covenant extends the buff on headshots. Precision is the point.
Alternative if…
- Star Chart only → First Sermon
- This is too much Forma / cost → First Sermon — Star Chart
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 0/4 · required — 4 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: 4 Forma · Reactor · 1 shard · 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.
Your next step
Next: Lasting Vow — Optimised
Unlock Helminth, Steel Path, or Archon Hunts before this upgrade is honest.
Lasting Vow — OptimisedPlan
Today → next → later
Inventory unknown — mark “I own this” on a few mods. Until then this is a plan, not a score of zero.
- NextGet Growing PowerThe Silver Grove quest
- After that3–4 FormaOne slot at a time. Rank 30 after each polarize.
- LaterAmber · Casting SpeedHelminth and shards are the last rungs. They are not the Starter.
- FinalLasting Vow — Steel PathSteel Path · Advanced · 3–4 Forma
Upgrade from here
Lasting Vow — Optimised
Locked behind Helminth, Steel Path, or Archon Hunts. Tick those on Progress first.
Open Lasting Vow — OptimisedFarm the gap
- Harrow augments — Lasting Covenant · Warding Thurible · Tribunal
Helminth & shards
What to put on the body
- 1 Amber · Casting Speed — Covenant on tempo. The invuln is a resource.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 Growing Power
One named gap. The Silver Grove quest
60 minutes
Growing Power, 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 Growing Power
The Silver Grove quest
Who this is for
Play this build from zero
Steel Path. Lasting Covenant is bought. You will peek.
- Time to a playable copy
- After Lasting Covenant and a headshot gun.
- First mission to practice in
- SP Exterminate with a sniper or Incarnon. Watch the buff timer jump on headshots.
2 button drills · 12 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
Vow loop
Pocket card. Stick this on a second screen; the long version is the mission below.
- 1Condemn (1) so you have shields and they stand still for headshots.
- 2Covenant (4) in the open so it actually absorbs damage. Hide during invuln and you get a tiny crit buff.
- 3Headshot during the crit window. Lasting Covenant refreshes. Do not let it drop.
- 4Thurible (3) if energy dipped. Penance (2) if you want fire rate on top.
First mission — press these buttons
- 1
Condemn, then Covenant while they can still shoot you
4Eat the damage. The crit number on the buff is the point.
You will know it worked when: Invuln flash, then a crit-chance buff. Bigger if you got hit hard.
- 2
Headshot to keep it alive
The timer should jump, not tick to zero.
Common mistakes
Covenant behind a Snow Globe
Nothing hits you, nothing converts. Peek.
When this feels easy
- 1AvengerYou are taking hits on purpose. Flat crit stacks.
Parts checklist
0 of 12 owned. Tap How on anything you still need.
Dependencies
15 dependencies
Frame → mods → unlocks. Tick Collection and Progress. This is a decision graph, not a wiki tree.
- 1●harrowframe
- 2○Growing Powermod
- 3○Power Driftmod
- 4○Lasting Covenantaugment
- 5○Blind Ragemod
- 6○Primed Continuitymod
- 7○Intensifymod
- 8○Stretchmod
- 9○Primed Flowmod
- 10○Rolling Guardmod
- 11○Arcane Avengerarcane
- 12○Molt Augmentedarcane
- 13○Amber · Casting Speedshard
- 14○Steel Pathunlock
- 15○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 Powermissing · The Silver Grove quest
Power Driftmissing · Unlock Lua
- Lasting Covenant
missing · Red Veil / Steel Meridian · 25,000
Headshots extend Covenant. The 2026 augment.
Blind Ragemissing · Run Orokin Vaults
Primed Continuitymissing · Wait for Baro Ki'Teer
Intensifymissing · Fight Lieutenant Lech Kril
Stretchmissing · Enemy drops
Primed Flowmissing · Baro Ki'Teer
Recommended
- Arcane Avenger
missing · Eidolon hunts / trade
Flat crit when you take damage. You just stood in Covenant on purpose. Rank 0 is legal. Rank 3 is the Steel Path version.
Molt Augmentedmissing · Unlock the Zariman
Strength as you kill. Fatter Covenant conversion. Rank 0 is legal. Rank 3 is the Steel Path version.
Optional
Strength
~180–220% Covenant crit conversion
Duration
155%+ so the window exists; Lasting extends it
Range
145–175% Condemn
Covenant: absorb damage during invuln, convert to crit chance (headshots get more). Lasting Covenant: headshots refresh duration. You want to get shot during the invuln on purpose.
From the mods
Live power
Additive from max-rank Codex mods. Efficiency clamped 15–175%. Umbral set is +11% Strength per extra piece.
- Strength
- 244%
- Duration
- 155%
- Range
- 145%
- Efficiency
- 45%
- Energy
- +275%
- Capacity
- 49 / 67
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
Harrow mods
- AuraGrowing PowerSilver Grove specters
- ExilusPower DriftOrokin Vaults / Lua
- 1Lasting CovenantHeadshots extend Covenant. The 2026 augment.Red Veil / Steel Meridian · 25k
- 2Blind RageOrokin Vaults
- 3Primed ContinuityBaro Ki'Teer
- 4IntensifyMercury / Venus
- 5StretchEnemy drops
- 6Primed FlowBaro / relics
- 7Rolling GuardStatus cleanse when you peek after the invuln.Arbitrations
| Slot | Mod | Source | How |
|---|---|---|---|
| Aura | Growing Power | Silver Grove specters | |
| Exilus | Power Drift | Orokin Vaults / Lua | |
| 1 | Lasting Covenant Headshots extend Covenant. The 2026 augment. | Red Veil / Steel Meridian · 25k | |
| 2 | Blind Rage | Orokin Vaults | |
| 3 | Primed Continuity | Baro Ki'Teer | |
| 4 | Intensify | Mercury / Venus | |
| 5 | Stretch | Enemy drops | |
| 6 | Primed Flow | Baro / relics | |
| 7 | Rolling Guard Status cleanse when you peek after the invuln. | Arbitrations |
Crit / headshot guns
Snipers, Incarnons, anything that can headshot. Lasting Covenant extends the buff on headshots. Precision is the point.
Arcanes
Arcane Avenger
Flat crit when you take damage. You just stood in Covenant on purpose. Rank 0 is legal. Rank 3 is the Steel Path version.
Eidolon hunts / trade
Molt Augmented
Strength as you kill. Fatter Covenant conversion. Rank 0 is legal. Rank 3 is the Steel Path version.
Zariman
Archon shards
- 1
Amber · Casting SpeedCovenant on tempo. The invuln is a resource.1 · EDA
| # | Shard | Qty | Source | How |
|---|---|---|---|---|
| 1 | Amber · Casting Speed Covenant on tempo. The invuln is a resource. | 1 | EDA |