Theorylytics

Harrow Prime

Eternal Creed

Lasting Covenant Crits

Frame
Harrow Prime
Forma
3
Playstyle
Helminth
Keep 4 · Lasting Covenant

Lasting Covenant Harrow - headshot kills extend the crit chance buff indefinitely while Thurible and Condemn keep energy and shields online. Harrow Prime's extra polarities cut Forma versus base Harrow for the same polarity story.

Alternative builds

Build dossier · Eternal Creed

3 Forma

Loadout

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

-7

Growing Power

On Status Effect with Weapon: Squad increases personal Ability Strength by 25% for 6s.

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

Rolling Guard

On Dodge: · Become invulnerable for 3s and remove all Status Effects. 7s cooldown.

16

Umbral Intensify

+44% Ability Strength · +11% Tau Resistance

Arcanes

Recommended pair first, then flexible swaps.

RecommendedMolt AugmentedWarframe · RareStrengthRecommendedArcane EnergizeWarframe · LegendaryThurible comfort
Arcane AvengerWarframe · RareAlt crit

Arsenal

Playstyle

Cast Covenant, eat a hit during i-frames if you need crit stacks, then never drop the buff — Lasting Covenant headshot kills extend it. Thurible for energy, Condemn for shields and pinned heads.

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.
  • Augment: Lasting Covenant on Covenant. Duration makes extensions generous.

Mod breakdown

Duration

Primary investment — Penance, Thurible, and Covenant headshot extensions.

Strength / Range

Strength for Covenant crit cap comfort and Thurible energy/kill; Range for Condemn / Thurible aura.

Aura / Exilus

Archon shards

  • Duration
  • Casting Speed
  • Strength flex

Helminth

Keep Covenant + Thurible. Flex Condemn for Pillage / Evade only if you accept losing chain shields.

Mission Usefulness

  • Steel Path Survival / Defense / Disruption

    Excellent

    Lasting Covenant crit chance from headshots turns SP guns into red-crit machines under Thurible energy.

  • Mobile Defense / Excavation

    Excellent

    Condemn the point, headshot under Covenant.

  • Exterminate / Capture Speed Runs

    Excellent

    Headshot loops clear tiles fast.

  • Spy / Rescue / Nightmare

    Situational

    Quiet-ish with careful guns; still a combat priest.

  • Open World / Bounties

    Strong

    Camp headshots feed Covenant forever.

  • Long-Range Gunplay / Eidolon-Style Content

    Excellent

    Classic Eidolon / long-range crit platform — Covenant loves snipers.