Do you love [Excalibur Umbra] but don't really use him because he's all offense and no defense? Tired of getting wasted because he just doesn't have general survivability?

This is my current Umbra build. I use him for Lich Hunting and Sorties etc. Pillage makes all the difference.

The Aura Forma is nice. I use [Corrosive Projection] or [Enemy Radar]. I also typically use Zenurik for the energy generation, but Naramon would be good too if you want to take your chances with pickups and [Hunter Adrenaline] to have better combo stuff.