This is my Corrosive Heat [Kuva Bramma]. 5 Forma because the Kuva weapon can only [Reach] MR gained after formaing 5 times. I use corrosive heat because it does good against all factions. If you were going against higher lvl opponents, A Viral-Slash would perform better, and for that, you would simply replace the electricity with cold damage, and use Hunter Munitions instead of Hellfire. with 208k damage, you will easily one-shot anything in the Star Chart and even into the low and mid LVLs of the Sortie. You can also use the Primed Bane mods if you have them. These will provide more damage if you're taking it against the right factions, however, I do not like to use these because it requires me to change mine after almost any mission.