This build is for general use.

It's a more co-op focused build rather than a solo build, that's why it has some range, to [Reach] allies with his 2 and 3.

Use whatever you want on the Exilus slot, you'll need Umbra formas or normal formas and use Archon Vitality and normal Intensify (or other mod like Energy Conversion)

You can also, if his 2 is enough for you, replace [Umbral Vitality] for either Hunter Adrenaline or Rage