Eobard Thawne and Edward Clariss, as previously mentioned, used their considerable intellect to artifically reproduce the superspeed manifested by their hated obsession, the Flash of Two Worlds. Their motivation being greed for ill-gotten gains was exceeded in Thawne's case by his lust for Iris West, the one true love of Barry "Flash" Allen. By the time Clariss had encountered Jay "Flash" Garrick's girlfriend Joan Williams, he was of to advanced an age to notice her at that point. While Clariss only had one documented and one untold escapade as the as the Rival , Thawne's Reverse Flash or Professor Zoom returned time and again. At one point, Zoom actually lived and operated on Rival's Earth-Two. However, it was upon returning to Earth-One and seemingly ending the life of Iris Allen that utltimately led to his end as well!
Ghost Rider and Firestorm
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