Who was the guy with the paler Deathstroke mask?
And yeah, I liked this episode. A lot of people are complaining about it, but this was essentially "Arrow does For the Man Who Has Everything", and frankly they did it better than Supergirl did. (Diggle as Arrow was the best part, says a lot about him.)
Supergirl and Wally goofing around while Wilddog went "hrumph" was fun, too.