My builds are not the best but they work for me
Took the V off of the exilus slot and put it over either Thermite Rounds or Volatile Variant
I prefer deadhead, can use whatever arcane you want though
This regularly crits for 10-20mil for me, but should mostly be used against trash mobs or groups, can chunk an acolyte still though, but not the best at it.
I have [Vigilante Fervor] + [Vigilante Supplies] to get orange crits semi regularly, if you didnt care about crits replace Vigilante Fervor with Rifle Elementalist and the riven with whatever you want, maybe [Semi-Rifle Cannonade]