-Used with my Nourish Harrow: https://overframe.gg/build/495756/
-Penance will give me attack speed already but If not using a Warframe that has AS boosting abilities like Warcry or Speed. Replace Killing Blow with Primed Fury/Quickening
-If no riven use [Primed Fury] or Quickening. Don't use Berserker Fury it will only affect the stick and not the disc despite being able to trigger its on-kill effects.
-This might as well be for Corrosive and Blast, just replace [Volcanic Edge] with [Virulent Scourge]. For Corrosive and Heat you'll get a free mod slot. Use whatever you need there. Attack speed, Status chance and Status duration are what comes to mind for me.

Viral Radiation Variant with Shock Trooper: https://overframe.gg/build/493100/
Standard Viral Radiation Variant: https://overframe.gg/build/499021/