I like this with a Magnetic Kuva Lich.

This build allows you to simultaneously proc Viral for +325% damage against health, Heat to [Shred] 50% armor, Radiation from the innate damage type to deal with Ancient auras, and a Kuva Lich damage type of Magnetic lets you proc up to +325% damage against shields in case you're fighting high-level Corpus.

Because I like weapons that can just be dropped into a build and forgotten about for all mission types, I wanted to find a weapon that could proc both Viral and Magnetic, so I could get those sweet damage buffs on anything at all. So, I found this weapon and made it happen. It deletes things very quickly, and on mine it usually hits 10 Viral procs within a second or two. Longer for the Magnetic procs, but that seems fine to me - the first proc is the biggest damage buff anyway, so as long as there is one proc, it seems fine.

This is why I call this my "General Purpose Enemy Remover".