User blog comment:Immortal ripper/Malcolm's resurrection/@comment-1159766-20131222133445

I think what people are forgetting is a character who will be appearing soon, Nyssa al Ghul.

She owns a Lazarus Pit and might still be a member of the League, in the comics she left her father's side after what happened to her family during WWII (Like Ra's, she has survived a long time), it is possible she sent people, just as she sent Al Owal to find Sara Lance to retrieve Merlyn and dip him in the Lazarus Pit.