currently NIRA mod set is multiplicative with [Seismic Wave] and PPP, so its best to use it for increasing damage. Use Nira's Anguish and Nira's Hatred on your frame.

EVOLUTIONS

Evolution II: Lethal Impetus - On Kill: +15% Attack Speed for 15s. Stacks up to 3x.
Evolution III: Adept Reflexes - +15 Initial Combo
Evolution IV: Swift Transmute -Reach 3x Combo and Heavy Attack to activate Incarnon Form
Evolution V: Vulnerability Serum - Impaled enemies are +35% more vulnerable to Status Chance

How to use

Use Heavy Attack or Heavy Slam attack to activate Incarnon Form

When in Incarnon Forme, use heavy slam attacks on groups of enemies until you activate influence and spread Electric procs.

This is best used with Grouping Abilites or effects and/or with Armor Strip Abilities or effects.

Note: This build is not meant for single target damage and will struggle against singular enemies

credit to:
_july._
on the warframe community discord