User blog comment:Kaestal/My theory of Savitar being the Arrowverse version of Cobalt Blue (And therefore Eddie Thawne)/@comment-27700324-20170413215805

Well i want Eddie to be Cobalt Blue, not Savitar. Personally he should have a better backstory though than the one you gave him. In your version, you literally gave him no reason to hate Barry that made sense. Barry didn't know Eddie was going to shoot himself and was in Thawne's chokehold at that time. Eddie eventually stopped being a jerk to him and he wanted Eddie to live as shown when he saw him in the Speed Force. So i personally find the reason should be that maybe Eddie has an evil counterpart on Earth Two, Three, Nineteen, or Thirty Eight.