Merlyn the Dark Archer is Green Arrow's nemesis.
Biography
Merlyn is a deadly bow-wielding assassin and nemesis to Green Arrow. His incredible skills have made him one of the world's top contract killers. This has also established a rivalry between him and Green Arrow based on their archery. He has been a member of the 100, the Anti-Justice League, the Injustice League, the Killer Elite, the League of Assassins and the Secret Society of Super-Villains.
Events in Injustice
In Green Arrow's S.T.A.R. Labs Missions, Merlyn is posing as the hero, wearing his same costume. Green Arrow must defeat him in an archery duel.