INTRODUCTION

General use Steel path [Harrow] build using his full kit to provide shield regen for shield gating, high range of crowd control, energy regen for the team, reload/fire rate buffs and long duration covenant for both invulnerability window (i-frames) and crit buff.

Update 34: [Harrow] has indirectly been buffed by shield gating changes, since Condemn allows you to gain overshields basically every cast, meaning you can gain more shield gate i-frames than previously allowed. Currently Overshields count meaning hitting 1150 overshield with Condemn gives 2.5s shield gate. Once this is fixed, Harrow will instead get 2s of gate.

Build Alternatives
NEW POST VEILBREAKER Pillage FULL-STRIP variant: https://overframe.gg/build/374713/
Lasting Covenant CRIT variant: https://overframe.gg/build/258768/
Thermal Sunder NUKE Harrow: https://overframe.gg/build/274897/

PLAYSTYLE

  1. Channel Thurible when you have enough starting enough pool to hit higher energy regen per kill. You want to hit at least 30-40 energy/kill (e. .about 3 seconds), so each headshot kill gives you about 100 energy, but leave enough leftover energy to cast Condemn at least once for safety. When you need to refresh Thurible in the middle of battle, simply use i-frames from either [Rolling Guard] (3s) or Covenant and channel while invincible. You can also press 3 and 4 at the same time, so you are immortal while channeling Thurible, and you can fit two full rotations of covenant (33s) into roughly one thurible time (64s+3s channel).
  2. Spam Condemn whenever possible for crowd control and overshield generation, which also makes getting headshots much easier.
  3. Use Penance when at high overshields while invulnerable (with [Rolling Guard] or covenant) then immediately regenerate shields with Condemn OR cast Condemn first and immediately cast penance, which will use up your overshields while condemn refills your shields simultaneously so you never drop down to zero shield.
  4. Use Covenant when near enemies and absorb damage to convert into crit chance buff. You only need to prevent approximately 2000 damage to hit maximum buff.
  5. Land headshots whenever possible to regenerate more energy and see red crits.

Here is a short video guide on how to play Harrow: https://www.youtube.com/watch?v=Escs1Cz1800

BUILD SPECIFICS

Duration
Duration benefits all abilities meaning less energy is spent overall, less time spent micromanaging ability casts to refresh buffs and longer i-frames from covenant.

Efficiency
Minimum efficiency paired with [Primed Flow] is fine for [Harrow] since Thurible will give us a consistent source of energy regeneration and most abilities will have a long duration.

Range
High range is useful for crowd control from Condemn and the aura of Thurible so your team can benefit from energy [Regen]. This is the most flexible stat based on your preference. You can add [Narrow Minded] over [Augur Reach] if you prefer much longer duration in low level missions where crowd control is not as necessary.

Strength
High strength benefits all of [Harrow]'s abilities but there are no strength breakpoints required to make each ability function well. Having higher strength makes it slightly easier to cap overshields with 1, give a higher penance buff, give slightly more energy from thurible and makes it easier to [Reach] critical cap of 50% on Covenant.

Flexible Slots
Natural Talent is now flexible if you can slot 2 or more Amber Archon shards for cast speed.
Augur Message / Augur Reach are both flexible slots

Flexible slots can be swapped for:

Rolling Guard - preferred in high level/SP missions for status cleanse and more i-frames in addition to covenant. If you don't like this or need it, can swap for:

Aura

Exilus

Focus

Arcanes
Completely flexible and up to you. Arcanes that proc off headshots synergize well since [Harrow] is all about getting headshots.

Warframe arcanes:
Molt Efficiency gives free extra duration with shields active, which is easy to maintain with Condemn.
Molt Vigor/Molt Augmented gives free extra strength to boost penance/thurible.
Arcane Pistoleer gives ammo efficiency on headshots with your secondary
Arcane Consequence gives lots of parkour velocity on headshots
Arcane Rage/Precision

Archon Shards
Totally up to personal preference, but adding 2 or more Amber shards allows you to drop [Natural Talent] for one of the other flexible options.

HELMINTH

[Harrow]'s kit is generally full and synergistic so helminth is usually unnecessary. Here are some interesting options to try nevertheless:

NUKE HARROW

LOOT HARROW

VOID HARROW

Other mentions:

ARSENAL

Weapons that have special bonuses on headshots or weapons with extreme critical multipliers synergize well with Harrow's need for headshots and covenant's flat crit chance boost.

Primaries:

Secondaries: