Theorylytics

Harrow Prime

Penance Battery

Covenant Gun Platform

Frame
Harrow Prime
Forma
2
Playstyle
Helminth
Replace 3 (Roar / Nourish / Evade)

Gun Harrow - Lasting Covenant crits and Penance fire rate while a Helminth buffs weapons. Thurible optional if energy is solved. Harrow Prime's extra polarities cut Forma versus base Harrow for the same polarity story.

Alternative builds

Build dossier · Penance Battery

2 Forma

Loadout

Aura + Exilus on top, then eight general slots in two rows of four.

-7

Corrosive Projection

Enemies lose -18% Armor

9

Power Drift

+15% Ability Strength · +30% Chance to Resist Knockdown

16

Blind Rage

+99% Ability Strength · -55% Ability Efficiency

16

Transient Fortitude

+55% Ability Strength · -27.5% Ability Duration

14

Primed Continuity

+55% Ability Duration

16

Narrow Minded

+99% Ability Duration · -66% Ability Range

14

Primed Flow

+185% Energy Max

9

Lasting Covenant

Covenant Augment: Headshot kills increase Critical Chance bonus duration by 3s.

12

Adaptation

When Damaged: · +10% Resistance to that Damage Type for 20s. Stacks up to 90%.

16

Umbral Intensify

+44% Ability Strength · +11% Tau Resistance

Arcanes

Recommended pair first, then flexible swaps.

RecommendedMolt AugmentedWarframe · RareStrengthRecommendedArcane RageWarframe · RarePrimary
Arcane AvengerWarframe · RareAlt crit

Arsenal

Playstyle

Helminth over Thurible or Condemn — Covenant crit platform with Penance fire rate while guns delete. Energy from Zenurik / Arcane Energize.

Passive abilities

Headshots build Overshields. Covenant converts absorbed damage into squad crit chance; Lasting Covenant extends that buff on headshot kills so one good cast can last a mission.

Active abilities

  • 1 Condemn — Chain wave that pins enemies and restores shields per hit. Tribunal shares Penance/Thurible triggers.
  • 2 Penance — Spend shields for fire rate / reload and convert damage dealt into squad healing.
  • 3 Thurible — Channel energy into a kill-energy aura. Warding Thurible adds DR while channeling.
  • 4 Covenant — i-frames then crit chance buff from absorbed damage. Lasting Covenant is the headshot endurance key.
  • Helminth over Thurible or Condemn (Roar / Nourish / Evade). Lasting Covenant on Covenant.

Mod breakdown

Duration / Strength

Covenant extensions and Penance buffs.

Aura / Exilus

Archon shards

  • Duration
  • Strength
  • Casting Speed

Helminth

Roar / Nourish for guns. Keep Covenant.

Mission Usefulness

  • Steel Path Survival / Defense / Disruption

    Strong

    Covenant crits + Helminth gun buff — Thurible optional squad fuel.

  • Mobile Defense / Excavation

    Excellent

    Crit guns on the point under Penance heal.

  • Exterminate / Capture Speed Runs

    Excellent

    Skip Thurible channel — shoot.

  • Spy / Rescue / Nightmare

    Weak

    Not stealth.

  • Open World / Bounties

    Strong

    Guns cover travel.

  • Long-Range Gunplay / Eidolon-Style Content

    Excellent

    Crit weapon platform for hunts.