The Flash Season 2: 11 Big Questions We're Asking After 'Flash Back'
10. What Are Time Wraiths?
Well, this was a creepy addition to the show. Looking like the hell-spawn of a Nazgûl and a Dementor, the Time Wraiths are, on one hand, just as the name suggests: spirits who appear when someone messes with time. However, there's still a lot we don't know about the creatures.
Why do they only target speedsters? Why haven't we seen them before, given how many times Barry has time travelled already? What exactly are their powers, and what do they really want? Where do they come from? Why haven't they been mentioned of Legends of Tomorrow, which has Time Masters?
They're certainly a fun concept, and used fairly effectively in this episode, but there are plenty of other things the show could do with these mysterious new creatures.