Harrow vs Kullervo
Same Support / Healer fantasy — which support kit fits your squad and mission rota?
TL;DR — Quick Pick
Pick Harrow if…
- You want the squad gap filled by Harrow's vibe — Achieve redemption through vengeance.
- This slot should feel like Condemn, Penance, and Covenant, not a reskin of Kullervo's Wrathful Advance, Recompense, and Storm Of Ukko.
- You're buying into Harrow's passive — overshield capacity doubled.
Pick Kullervo if…
- Kullervo answers for his sins and the sins of others — that's the Kullervo pitch you want on the roster.
- You'd rather build around Collective Curse than live in Harrow's Thurible loop.
- You're buying into Kullervo's passive — kullervo boasts +a percentage Heavy Attack Efficiency and +wind-up% Heavy Attack Wind Up Speed….
Verdict
Both fill the Support / Healer lane. Lean Harrow for Thurible and Thurible; lean Kullervo for Collective Curse and Collective Curse. Mission Usefulness is a wash — decide on kit feel and passive, not the rating table.
At a Glance
Harrow
Stat
Kullervo
Support / Healer
Role
Support / Healer
NaramonAura
NaramonMatch the priority to your main ability
Mod Priority
Match the priority to your main ability
Condemn
Kit Opener
Wrathful Advance
Mission Usefulness
Mission
Harrow
Kullervo
Steel Path Survival / Defense / Disruption
Mobile Defense / Excavation
Exterminate / Capture Speed Runs
Spy / Rescue / Nightmare
Open World / Bounties
Long-Range Gunplay / Eidolon-Style Content
When Each Shines
Harrow
- Thurible carries mid-mission casts; Covenant is the density payoff.
- Mod focus stays on match the priority to your main ability so the cast loop doesn't fall over mid-rota.
- Missions that reward committing to Harrow's full ability loop instead of dabbling.
Kullervo
- Collective Curse carries mid-mission casts; Storm Of Ukko is the density payoff.
- Mod focus stays on match the priority to your main ability so the cast loop doesn't fall over mid-rota.
- Dense spawns where Kullervo's cast cadence outpaces gun-only clears.
Mod Scaling Focus
Harrow
Match the priority to your main ability — Strength or Duration first for most kits, then Efficiency, then Range.
- STR
- Raises damage and effect potency across Harrow’s Strength-scaling abilities.
- DUR
- Extends channeled / timed effects — often comfort on Harrow if the kit leans on buffs or zones.
- RNG
- Helps radius / targeting tools. Dump it if Harrow is mostly self-buff or exalted weapons.
- EFF
- Keeps ability uptime comfortable, especially on longer Steel Path missions.
Kullervo
Match the priority to your main ability — Strength or Duration first for most kits, then Efficiency, then Range.
- STR
- Raises damage and effect potency across Kullervo’s Strength-scaling abilities.
- DUR
- Extends channeled / timed effects — often comfort on Kullervo if the kit leans on buffs or zones.
- RNG
- Helps radius / targeting tools. Dump it if Kullervo is mostly self-buff or exalted weapons.
- EFF
- Keeps ability uptime comfortable, especially on longer Steel Path missions.
Who Should You Pull?
- Thurible into Covenant is the cast story you want to master — not a random subsume mashup.
- You'd rather specialize hard into Thurible than stay generic in the Support lane.
- Skipping Kullervo frees a craft slot — you'd rather finish Harrow properly.
- Open-world and bounty pacing still feel good on Harrow, not only endless survival tiles.
- Inventory space / foundry queue: Harrow jumps the line over another Kullervo craft.
- Collective Curse into Storm Of Ukko is the cast story you want to master — not a random subsume mashup.
- Recompense and later abilities stay on the frame forever in your builds — you're not looking for a subsume tourist.
- Harrow's Thurible loop asks for a different muscle memory than you want to practice.
- You're done shopping the Support / Healer aisle once Kullervo is online.
- If you only rank one more Warframe to 30 this week, it should be Kullervo.