The last two seasons of Arrow have, in terms of character development, been spent on turning Earth-2 Laurel Lance into the Black Canary from the villainous Black Siren she originally came to Earth-1 to be.
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After three more seasons, Laurel Lance will thrive as the Black Canary once again. It’s been a long road, with many missteps, but we finally get to see Katie Cassidy as the iconic heroine again.