Build Based on Grind Hard Squad's fun Booban build from this video:

https://www.youtube.com/watch?v=SwNRRO0UxI4

Spectrosyphon can be replaced with [Flow] if you dont use [Gara]'s Hall of Mirrors fair ride or dont have the augment mod.
I added the umbral versions of the Vit and Fib mods because why not, and I have a few umbral forma which is why that's there. If you dont have one or just dont want to use one on Booban, then you can either use the non-umbral versions (which bring his armor to 420 btw :P) or you can forma the other slots.

I also enjoy a more passive playstyle, which is why I replaced [Rolling Guard] with Fiber. I'd also change out Eruption for [Guardian] if you're not running [Rolling Guard].