This is your general use Endurance [Ash] build for Arbitrations. [Rising Storm] and [Swift Momentum] combine to boost your Melee's Combo Duration, while also allowing you to quickly refresh your Combo Counter by targeting one or more enemies with Bladestorm. The build also has high Duration, which lets you stay invisible for longer. [Rolling Guard] combined with Shield Gating prevents any random damage that might have otherwise killed you.
Because this setup is frequently used in solo Endurance runs, you have a lot of options for your Aura. If you're running a strong Melee setup, I recommend [Swift Momentum]. Paired with [Kronen Prime], this build can kill maximum level Demolysts in Arbitration.