1) The Legends Break Time Itself
After the Legion of Doom rewrites reality back in season two, the Legends must go back in time to 1916—a place they’d already gone back to—in hopes of grabbing the Spear of Destiny before Eobard Thawne destroys it to cement his dystopian world. As a result, the Legends have to interact with their past selves, a chronal anomaly that does some very bad things to the timeline, by which I mean “time shatters.” When they return to the present (at the end of the season two finale), dinosaurs are running around, historical figures have been scattered through time, Vikings are worshipping a Beebo plush toy, and the Legends have to spend the bulk of season three cleaning up their mess. (Season 2, “Aruba”)
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