Helminth Subsume Guide — Best Abilities to Replace and How the System Works

Helminth System Quick Reference

How Helminth Works — From Sacrifice to Infusion

The Helminth chamber is a hub in your Orbiter unlocked by completing the Heart of Deimos quest and building the chamber room (requires Infested resources: Pheromones, Mutagen Samples, etc.). Once built, you interact with the Helminth via a menu screen that shows your library of subsumed abilities, your stash of resources, and the current target Warframe.

To subsume: take a rank 30 Warframe with at least one Forma applied, insert it into the Helminth chamber. After a delay (cooking down between subsumes), Helminth extracts one ability from that Warframe — specifically, the ability listed as the 'Helminth ability' in the Warframe's wiki entry, which is always the second ability for most frames. The sacrificed Warframe is permanently consumed; if you want to use it again, you must re-build it from blueprint.

To infuse: select a target Warframe (must be rank 30) and a subsumed ability from your library. The infusion process consumes Helminth resources (Bile, Pheromones, Calx, Synathids, Biotics — five different categories) and replaces one of the target's abilities with the subsumed ability. You choose which of the target's 4 abilities gets replaced. The infused ability persists permanently on that Warframe until you infuse a different ability over it.

Each Warframe can only host ONE infused ability at a time. If you infuse Roar onto Mesa, then later infuse Gloom onto Mesa, the Roar is overwritten. Plan your infusions carefully — re-infusing costs resources and requires the same prerequisites.

The 8 Best Subsume Abilities — Pick These First

Why Roar Is the Most Popular Subsume

Roar is the single most-subsumed ability in Warframe. Why: it provides a flat damage multiplier that applies to weapons, ability damage, status damage, and DoT effects. At 200% strength, Roar grants roughly 45% bonus damage. This multiplier stacks multiplicatively on top of mods, arcanes, and faction damage buffs, making it one of the strongest damage amplifiers available.

Roar is particularly impactful on Warframes with high single-ability damage. Saryn's Spores benefit massively because Roar amplifies the spore tick damage. Mesa's Peacemaker bullets gain a flat 45% boost. Khora's Whipclaw scales directly with Roar. Equinox's Maim detonation hits harder under Roar. Any frame whose damage output is gated by a single key ability is improved disproportionately by subsuming Roar.

The cost: you sacrifice a Rhino. Rhino is cheap to farm (Jackal on Venus, 4–8 runs) and his base kit doesn't require Roar exclusively (you can still build Rhino for Iron Skin tanking after losing Roar via subsume). Many players sacrifice 2–3 Rhinos across an account because Roar is desired on multiple frames. Rhino blueprint parts are also tradeable on Warframe.market for cheap platinum.

Eclipse, Gloom, Pillage — The Other Top-Tier Subsumes

Eclipse (Mirage's 2): grants either a damage buff (up to 200% in bright environments) or damage reduction (up to 95% in dark environments) depending on the lighting around you. In bright tilesets (Corpus ship interiors), you get the damage buff. In dark tilesets (Grineer asteroid bases, Infested ships), you get damage reduction. Modern Eclipse no longer requires the environment lighting trick — patches let players toggle the desired effect. Eclipse is the best dual-purpose subsume for frames that need both offensive scaling and survival, like Loki or Mag.

Gloom (Sevagoth's 2): an aura that drastically slows enemies in range (down to 25% movement speed at max strength) and heals you on kill within the area. Gloom on Inaros, Nidus, or any tank-frame creates a 'death zone' where slowed enemies cannot keep up with you while you regenerate HP from every kill. Combined with Arcane Grace and Arcane Guardian, Gloom-subsumed tanks become nearly immortal. The slow alone is the best non-Stasis CC in the game.

Pillage (Hildryn's 2): an expanding ring that strips a percentage of enemy armor and shields (up to 95% with high strength), converting that stripped armor/shields into shield restoration for the caster. Pillage is best on squishy frames that lack survivability (Mag, Loki, Banshee) because it provides both armor strip (your weapons hit harder) and shield restoration (you survive return fire). It's also a strong choice on Mesa, where her Peacemaker shred enemies that have been pre-stripped by Pillage.

Marked for Death (Voruna's 1): tags an enemy; when the marked enemy dies, the overkill damage chains to nearby enemies in an AoE explosion. This converts a single-target weapon burst into AoE clear. Best on Mesa (Peacemaker spreads damage), Saryn (overkill detonates the marked enemy and ignites Spores on neighbors), and any frame relying on heavy single-target weapons like Felarx or Phantasma.

Helminth Feeding — The 5 Resource Categories

Efficient Helminth Feeding Tips

• Feed only when an appetite is BELOW 25%: Helminth gives bonus stat percentages when its appetites are saturated. Feed slightly to keep the meter green; don't overfeed when at 80%+.
• Rotate feeds across categories: Don't dump all resources into one category. The Helminth's combined bonuses scale with multiple full bars, not one overflowing bar.
• Save Orokin Cells for Bile only: Orokin Cells are valuable for crafting (every weapon and frame uses them). Feeding them to Helminth is wasteful unless Bile is critically low. Use Tellurium or Detonite Injectors first.
• Use the daily Sortie + Steel Path Acolyte drops: Daily Sorties and Steel Path drops give large bundles of mid-tier resources (Plastids, Circuits, Neurodes). These are ideal Helminth feeds.
• Don't feed rare resources you'll need for crafting: If you're saving Argon Crystals for a Prime build, hold onto them. Argon also expires (24h decay timer), so feed them BEFORE they decay if not using.
• Run Helminth invigorations every Monday: Each week, Helminth randomly selects 7 Warframes to offer a free Invigoration (random 2-buff combo for the week). Check the rotation and use it on a frame you actively play.
• Daily Helminth feed isn't required: Helminth doesn't 'starve' if you forget for a few days. It just operates at slightly reduced effectiveness. Feed during normal play, not as a chore.
• Use the Helminth subsume queue: You can sacrifice up to 5 Warframes simultaneously to the Helminth, queuing their subsume extractions. Plan bulk sacrifices when you have multiple farmed-and-leveled spare frames.

When to Subsume vs When to Keep the Original Ability

Verdict: The general rule: subsume the WEAKEST ability on a Warframe with the STRONGEST available subsume that fills a missing role. Subsume Inaros's 1 (Desiccation) for Gloom. Subsume Loki's Decoy for Roar. Subsume Limbo's Banish for Roar. Never subsume an exalted ability or a signature ability that defines the frame's role.