When the Legends failed to stop the Legion, Sara violated the most important rule of time travel by having the team interact with past versions of themselves.
Their actions “broke time,” resulting in an unknown amount of anomalies throughout spacetime that the Legends will have to fix in season 3.
Season 3 of The CW series Legends of Tomorrow will explore a new character arc with Sara Lance, the White Canary, as the character struggles with feelings of guilt and tries to take responsibility for her actions.
Considering Sara’s friendship with Rip, it’s hard to say how she’ll respond if the character blames her for the time anomalies.