Darth maul???

Sith1

So I have looked everywhere to get my question answered before posting Can't find a definitive answer to this.
So I just barely farmed him is he even viable now or does he have to be zeta to even make a difference? Looking to switch to sith lead and if so who would work best with him.

Lyvren89

Darth Maul availiable, but ya gotta get through certain shipments or get lucky with buying chromium pack...