DC's Legends of Tomorrow type TV Show network The CW genre Superhero

Warning: This story contains major spoilers from Tuesday’s episode of DC’s Legends of Tomorrow. Read at your own risk!

Why does the Legion of Doom want the Spear of Destiny?

Well, it’s quite obvious that Damien Darhk (Neal McDonough) isn’t a fan of dying in the future, while Malcolm (John Barrowman) has a number of his own mistakes (Read: Tommy’s death) that he’d like to fix, but until now, Reverse-Flash’s (Matt Letscher) true motivations for wanting to rewrite reality have not yet been revealed.

During Tuesday’s episode of DC’s Legends of Tomorrow, the Legends came to realize the Reverse-Flash is the speedster heading the Legion of Doom. Stein (Victor Garber) explained that although Eobard’s ancestor, Eddie Thawne (Rick Cosnett), had killed himself, Reverse-Flash is still around because he’s a member of the Speed Force and is a time remnant.

This time remnant is the version of Reverse-Flash that Barry pulled out of the timeline, therefore creating Flashpoint. Once Eobard resets the timeline for Barry on The Flash, the villainous speedster was free, but he was being hunted.

The Legends presumed Thawne has to keep moving in order to stay ahead of his own non-existence — since time is like concrete and takes a while to set, he has to keep moving or else Eddie’s death will catch up to him and he’ll die. But there’s something much worse hunting Thawne. No, not the Time Wraiths, but the Black Flash.

In the season 2 finale, Hunter Zolomon (Teddy Sears) was transformed into the Black Flash by the Time Wraiths. In the comics, Black Flash is basically a Grim Reaper for speedsters, sending them back to Speed Force upon their death. While technically a villain, Black Flash is more of a personification of Death than a mustache-twirling antagonist.

Presumably, Thawne wants to rewrite reality to get the Black Flash off his back, but this might not be the last time we see him. Executive producer Andrew Kreisberg previously teased we’d be seeing the character on multiple shows. Get more details here.

DC’s Legends of Tomorrow airs Tuesdays at 9 p.m. ET on The CW.