Archon Hunter 1 shot build.

You want Radiation as your main elemental damage with Viral as a complimentary element. You don't need a riven and it can be replaced by [Vigilante Armaments]. The exilus mod can be swapped out for [Silent Battery] if you want to run [Ivara] with a Roar overwrite for the 1 shot, I personally run [Revenant] with a Roar overwrite. What you do is shoot enemies in the head to build up Deadhead and [Galvanized Hell] stacks before you enter the arena, line up the the Archon head and use the alt fire to dump all 4 barrels at once into it's head. The Revenant build