The only big time damage with this build is Grand Overture, which will be mostly used for bosses, champs, etc. This build is all about being a floodgate, place down the rift in a ideal choke point and it softens up enemies as they begin to go through. Clean them up, or soften them up further for the pulse, with the Arc wave frame of choice (I only had the freebie Forbearance, a Volt Shot Undercurrent would probably work the absolute best). I used a Kinetic Tremors Midnight Coup on jolted enemies, the grenade's only purpose in this build, to dish out some extra damage. If you don't want to use the Overture of boss rounds then you can swap it out for Supremacy/Anarchy, Cloudstrike/whatever. Gonna warn you right now, this isn't a build that has very high survivability, thus why I opted for Emergency Reinforcement over Resistance mods though you'll have it up a good chunk of the time thanks to Elemental Charge and the Arc Fragments.
These build settings contain: