I made this build to compare dps with other weapons but figured it might be useful to someone.

The riven on here is specific to myself alone, and the only mod I found that even remotely comes close to the damage it outputs is [Berserker Fury], so consider using that as a substitution. Even then, the riven isn't ideal for things outside of Grineer but it'll still do pretty well.

This weapon is my go-to for whenever I run [Loki]. I recommend using Ensnare on him alongside the [Epitaph] for a secondary. It's best used against groups of enemies, on any frame that can bunch them together (pretty much anything with Ensnare). Stay invisible forever, ensnare enemies, and start light-attacking the crap out of them. The gas damage will spread, and Condition Overload will make quick work of them. I've had an easy time going melee-only up to level 300 on Steel Path, and was having moderate success before I ever got the riven. Once you get to higher levels you ensnare, fire the Epitaph, and then go ham on the enemies with light-attacks.