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Flawed Reflex Coil
Warframe · Mod

Flawed Reflex Coil

Flawed melee heavy-attack efficiency mod

Released Oct 25, 2012

Flawed Reflex Coil reduces the combo cost of melee heavy attacks through Heavy Attack Efficiency, up to +40%. Consider it if heavy attacks are part of your melee use and you have this flawed variant; its three-rank ceiling is lower than the standard Reflex Coil's listed +60%.

TypeMeleePolaritynaramonMax rank3Base drain2VariantFlawedRarityUncommon
Flawed Reflex Coil GUIDE

Understand Flawed Reflex Coil

Useful when…

  • Use on a compatible melee weapon when heavy-attack efficiency is useful and this flawed variant is available.
  • Rank it modestly if you want some efficiency while limiting fusion investment.

Effect and equipment

Flawed Reflex Coil is a standard melee mod with Naramon polarity and base drain 2. It grants Heavy Attack Efficiency: +10% at rank 0, +30% at rank 2, and +40% at rank 3. This is an efficiency bonus for heavy attacks; the supplied description does not claim increased heavy-attack damage or faster wind-up.

wiki.warframe.com ↗

When it helps

Consider it for a melee setup that uses heavy attacks and wants to improve their efficiency. It occupies a standard melee slot, so compare its resource benefit with other effects you want on the weapon. Its Naramon polarity is the listed slot polarity; compatibility is stated for melee weapons.

Rank costs and alternatives

The mod has three ranks. The supplied costs are 20 Endo and 966 credits for 0→1, 40 Endo and 1,932 credits for 1→2, and 80 Endo and 3,864 credits for 2→3. Standard Reflex Coil reaches +60% efficiency at rank 5, while Galvanized Reflex lists +50% efficiency and a separate melee-kill bonus that adds initial combo for 20 seconds, stacking up to four times. Amalgam Organ Shatter offers critical damage and heavy-attack wind-up speed instead of efficiency. These are distinct effects, not automatic replacements.

wiki.warframe.com ↗

Variant restriction

Flawed Reflex Coil's incompatibility list names Reflex Coil and Galvanized Reflex. Do not plan to equip it together with either of those mods. The supplied details do not list a drop source for this flawed variant.

Limitations and tradeoffs

  • Its maximum Heavy Attack Efficiency is +40%, below the standard Reflex Coil's +60%.
  • It cannot be equipped with Reflex Coil or Galvanized Reflex.

Common mistakes to avoid

  • Treating Heavy Attack Efficiency as heavy-attack damage or wind-up speed.
  • Equipping it alongside Reflex Coil or Galvanized Reflex despite the incompatibility list.

Effects and reference details

Rank effects and investment

RankListed effectsUnpolarized drainTotal Endo from rank 0Total Credits from rank 0
0+10% Heavy Attack Efficiency200
1+20% Heavy Attack Efficiency320966
2+30% Heavy Attack Efficiency4602,898
3+40% Heavy Attack Efficiency51406,762

These are listed mod effects and fusion costs, not final build damage. Matching and mismatched polarities change capacity. Totals assume starting at rank 0.

References and version

Game data version: Pinned public export

Flawed Reflex Coil — WARFRAME Wiki ↗wiki.warframe.com ↗
Technical source data for verification

These machine-readable game records support the calculations and factual checks. The wiki references above are intended for reading.

Warframe Public Export ↗Raw game data (JSON) ↗wiki.warframe.com ↗

Original data record ↗

Optional: calculate an upgrade or configurationOpen the calculator when you want a cost estimate or a compatibility check.
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Fusion cost and capacity

0Endo
0Credits
2Target slot drain
RankObserved effectDrainEndo from 0Credits from 0
0+10% Heavy Attack Efficiency200
1+20% Heavy Attack Efficiency320966
2+30% Heavy Attack Efficiency4602,898
3+40% Heavy Attack Efficiency51406,762

Slot polarity changes drain; fusion prices depend on mod rarity and family.

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