Things got really interesting on the Arrowverse Crisis on Earth X event last night. We saw the return of Tommy Merlin, while not the Tommy that Oliver expected. We also saw the strange Earth-X marriage of Oliver and Supergirl. What can we expect on part 3 tonight? Check out the promo below and sound off with your thoughts AFTER THE JUMP. The Flash Crisis on Earth-X Pt. 3 airs tonight at 7pm Central on The CW.