User blog comment:Crimson Storm Mich/Future Units Preview v2/@comment-27362456-20160711141907/@comment-28524700-20160711181507

Well considering that the units that have unlock-able Es's using spheres you can only craft one of them besides like zelnite's which is any drop sphere. They wouldn't do that for the demons because you can craft an infinite amount of them to have on as any demon would be really op. That's why you can only get 1 of that sphere like ultors or colts