Understand Focus Radon
Useful when…
- Add Radiation damage and Heavy Attack Efficiency with one standard melee mod.
- Consider it when its Madurai polarity and both bonuses fit the build.
Effects by rank
At rank 0, Focus Radon grants +15% Radiation and +10% Heavy Attack Efficiency. At rank 2, it grants +45% and +30%; at maximum rank 3, +60% and +40%. These are mod bonuses, not a statement of the weapon’s final damage or the exact effect on combo consumption.
Slot and alternatives
It is a standard melee mod with Madurai polarity and base drain 4, compatible with melee weapons; no named exclusions are listed. Focus Energy has the same listed maximum Heavy Attack Efficiency and adds Electricity instead of Radiation, with base drain 6 and Madurai polarity. Flawed Reflex Coil lists +40% Heavy Attack Efficiency without an elemental bonus and has Naramon polarity.
Ranking costs
The mod reaches rank 3. Listed step costs are 30, 60, and 120 Endo, plus 1,449, 2,898, and 5,796 Credits. Rank 2 provides +45% Radiation and +30% Heavy Attack Efficiency; the final step adds 15 percentage points to each listed bonus.
Listed sources
The supplied drop locations list Elementa Arcocanid and Rogue Arcocanid, each with a 6% chance for Focus Radon. These entries identify listed sources and do not establish current availability.
Limitations and tradeoffs
- Combines an elemental bonus and Heavy Attack Efficiency in one standard melee slot.
- Its bonuses increase with rank, so weigh each rank’s costs against the value of both effects.
Common mistakes to avoid
- Treating +60% Radiation as the weapon’s final damage increase.
- Assuming the supplied Heavy Attack Efficiency bonus specifies an exact change to combo consumption.






