All this build needs is a [Magnus Prime] and it could do tons of damage. [Primed Heated Charge] can be swapped for a riven or one of the others if the heat can be used in combo with the riven to make something better.

Honestly this is more in wait for [Magnus Prime], but it seems like a solid enough build.

**As for a Riven, I'm not too well versed in them, but personally I'd be looking for something that gave a higher crit chance, hopefully to buff over 100% and probably a higher crit damage multiplier. The negative could probably be to fire rate. The way I see it, you don't need the power to fire your entire clip in one go. You'll want to be doing dodge rolls and headshoting often to get [Deadly Maneuvers] bonus on every shot you can, otherwise why have the mod.