Tricksters aren't only men in masks.
The hype around The Flash Season 1 Episode 17 was the return of Mark Hamill in the role he originated in the 90s version of The Flash, when the titular role was played by John Wesley Shipp, who currently plays Henry Allen.
Being the old broad that I am, this reunion delivered on many levels, but I wish the two men could have shared just a teensy bit more time together on screen. Heck, the fact they were there at all is a very big win.
That leaves another trickster, however, in the guise of Harrison Wells. It turns out his whole body is a mask. I really should have read up on Eobard Thawne in more detail a lot sooner.