Arrow 5×23 Season Finale Preview – “Lian Yu” Arrow 5×23 Preview Summary – DEATHSTROKE, NYSSA AL GHUL, MERLYN AND DIGGER HARKNESS JOIN OLIVER’S BATTLE AGAINST PROMETHEUS – The battle between Oliver (Stephen Amell) and Adrian Chase (Josh Segarra) culminates in a final epic battle on Lian Yu. After recent events, Oliver decides to recruit a […]