I know Primary Crux is all the [Rage], but this is built to take advantage of the current way Multishot interacts with Beam weapons. Essentially, Multishot "double dips" on statuses. To this end, a loadout using either Primary Blight or [Frostbite] is advantageous. Using Blight means that a Toxin weapon (which you can get from the Progenitor bonus alone) can also have Blast, an AoE damage status. The weapon is innately Corrosive.

Remember that headshots have an extra 20% bonus from this weapon's passive.

A Riven is difficult to currently use on this weapon due to the current low disposition. An ideal Riven would have Multishot and Heat (to replace [Thermite Rounds]), and probably more Critical Chance% due to the arcane already giving a sizeable bonus to that.