She reveals to Thea that , as Merlyn 's daughter , her help will be invaluable in stopping the Guild .
Nyssa returns to Star City in season 6 after she is confronted by the Thanatos Guild , a group created by Merlyn to carry on his legacy .
Nyssa reveals to Thea that , as Merlyn 's daughter , Nyssa 's help will be invaluable in stopping the Guild .
Nyssa returns to Star City in season 6 after she is confronted by the Thanatos Guild , a group created by Merlyn to carry on his legacy .