DC's Legends of Tomorrow : When are we going to see……

When are we going to see Sara Lance go up against Black Siren? C'mon, that's the meeting that we REALLY want to see.

I think Eobard Thawne is throwing waves of villains at the team.

First, villains who have personal back history with certain members of the team (Merlyn and Darkh)

Next, friends who become villains (Rip Hunter and perhaps soon Leonard Snart)

And then, doppelgangers of sisters that Sara doesn't even know exist (Black Siren)

If there was a way Thawne could reach back in time and make a version of Hourman evil to fight the team, I think he would do it.