Temporary Team for HK & Bast

Badtilla fits on any Sith team. Or almost any team really. Her debuff package is one of the most powerful in the game and completely shuts teams down. I have run her under zMaul on my Sith B team when she was low star. Now I run her on EP team with Sion Nihilus Thrawn. Can easily destroy any team but JKR. (Not sure about DR (No Malak) or Padme because I just haven't tried it yet but pretty sure it can beat them too.)

Haven't used HK much yet so can't comment.

HK doesn't really have a team without Bastila unless you have some homeless droids floating around.

Without Devan, he can be a splash anti-Jedi unit. Maybe if you use Qi'ra on offense, use HK to try and break Bastila or something? Or you could make Bastila and HK your +2 on a triumvirate team.

As mentioned BSF is one of the more versatile characters in-game now, and she works especially great with a (any) sith leader. Put her under zPalp or zMaul in a pure sith team, or stash her into a Dooku lead Separatist team. Fun times.