Today Stephen Amell posted the picture above and told fans it was him...fighting himself? But NO Vertigo was involved.
Wait...fighting himself? How is this possible...well here is one theory you may enjoy...
Hannibal Bates aka EVERYMAN
Originally from Gotham City, Hannibal Bates was the first person chosen by Lex Luthor to participate in the Everyman Project. This gave the ability to Shape-Shift. He became a member of Luthor's new incarnation of Infinity, Inc as Everyman.
It was later revealed that he had killed his teammate Skyman (Jacob Colby), and had been masquerading as him for quite some time. During the impersonation, he 'assisted' Natasha Irons in her investigation of Luthor's super-human program. Skyman's ravaged body was shown; Hannibal stated that though he only needs a small portion, he just likes the taste. Natasha, who was romantically involved with Skyman, battled and nearly subdued Everyman, until Luthor saved him.
When Steel (John Henry Irons) and the Teen Titans came to rescue Natasha Irons, but Hannibal was disguised as Natasha, then shifted into a giant crab and attacked him, but the hero easily defeated him. After the battle with Steel he posed as as Lex Luthor as the former mogul was put in jail. His ruse was discovered by Clark Kent, and the real Luthor was placed into custody.
The above may seem boring and arbitrary but this is where it gets interesting...
Hannibal is later seen teamed up with Cupid, a vigilante obsessed with Green Arrow, and calling himself Dark Arrow. The two lure Green Arrow, Black Canary and Speedy into a trap, setting off explosive charges that seem to kill them. Watching from a distance, Cobalt, one of Big Game's subordinates, activates Nanites in Dark Arrow's bloodstream, compelling them to strangle Cupid. However, the act brings him to remember the night he tried to kill Black Canary, freeing him from the nanites' control. Cupid then injects him with a "love potion", putting him under her thrall again. The group are then attacked by Green Arrow and company, who had escaped the blast. During the fight, Cupid sets off one of Speedy's quantum arrows, creating an explosion that covers the villainous couple's escape. Cupid later kills Hannibal by poisoning him, declaring their relationship "a rebound thing".
Seems all to familiar to me...