I've been running full power strength with Noctua with high crit and then toxin and fire rate (from every possible source) and then archon continuity gives a corrosive effect for each toxin effect, basically it instakills corpus and then if I don't status toxin for the free corrosive then it's doing slash so grineer die very very fast. With energy nexus I basically just run the book and fire non-stop. Who knew reading books could be so much fun?