Understand Focus Energy
Useful when…
- Use on a melee build that values both Electricity and Heavy Attack Efficiency.
Effect and compatibility
Focus Energy is a standard melee mod with Madurai polarity and base drain 6. At rank 0 it grants +10% Heavy Attack Efficiency and +15% Electricity; at rank 2 it grants +30% and +45%; at maximum rank 3 it grants +40% and +60%.
Rank investment
The listed rank-up costs are 30 Endo and 1,449 Credits from rank 0 to 1, 60 Endo and 2,898 Credits from rank 1 to 2, and 120 Endo and 5,796 Credits from rank 2 to 3. Since the rank cap is only 3, the final rank provides the listed maxima for both effects; whether to invest fully depends on the value of those paired bonuses in the build.
Related melee choices
Flawed Reflex Coil provides Heavy Attack Efficiency without an Electricity bonus and has a lower base drain of 2. Focus Radon offers Radiation with the same listed +40% Heavy Attack Efficiency at rank 3, with base drain 4. Galvanized Reflex reaches +50% Heavy Attack Efficiency and can build Initial Combo on melee kills, but it is a separate rank-10 mod. These options differ in element, cost profile, and additional effects.
Acquisition
The listed source is Nightmare Mode Rewards, Rotation C, with a 15.49% chance.
Limitations and tradeoffs
- It has base drain 6 and spends its paired effect on Electricity and Heavy Attack Efficiency.
- A build that needs only Heavy Attack Efficiency may prefer an option without an elemental bonus, depending on available capacity.
Common mistakes to avoid
- Using the mod only for Heavy Attack Efficiency without considering its Electricity bonus and drain.
- Assuming its rank-3 effects also provide Radiation or Initial Combo.






