How to best use starkiller

Yeah I built and unlocked Starkiller too because it seemed like an interesting team in Conquest. All that effort and really he seems like hot garbage. He is probably more useful when you activate his 3 omicron abilities for Grand Arena but I will never know because I do not play that game mode. So now I put him on the Ignore Trash Pile of Regret with my Bounty Hunters and my Tuskens.

In 5v5, use EP lead, Mara, Starkiller, a Jedi (preferably a tank) and a light side UFU.

3v3 is normally EP, Mara and Starkiller.

Look at his unique "There is much conflict in you" for what he needs in a team.