Similar to my normal catabolyst build except I recently got a good riven to add viral and a bit of crit chance. The low disposition will be nice for awhile to not mess up the heat weighting. I went with a heat progenitor to bump up the heat weighting even more so I can keep cascadia flare active more easily.

If you don't have a problem with keeping heat procs up, you can also run a magnetic or radiation progenitor and swap in either [Accelerated Isotope] or [Magnetic Might] to get both statuses and either extra crit damage or fire rate, depending on if you want to lean into the beam or the grenades.

The +300% crit chance should be enough for most people, but if you'd like, you can swap out the rad/[Mag] mod for [Primed Pistol Gambit]. I occasionally put this on my Yareli, which gives me a ton of extra cc, so it's not as necessary.

If no riven, swap both the riven and rad/mag mod for viral 60/60 mods. Or you can just put in [Primed Pistol Gambit] over the riven and outsource the viral to a companion.