Holy T-Spheres! Tonight’s Arrow was filled with some pretty major moments, from the Prometheus reveal to the development of Curtis’ Mr. Terrific tech to Felicity’s big decision regarding Helix. Does anyone else feel like Arrow is getting ready to sprint the home stretch of Season 5? Let’s get the big moment of the night out of the way because, while it may have been dropped midway through the episode like a casual aside, the reveal that Prometheus is none other than Adrian Chase is a big deal.