Blizzard Entertainment unveiled a new Overwatch hero named Doctrine, a vampire character with a cyborg arm and mechanical bats, during the Blizzcon opening ceremony. A story trailer suggests a connection to Doomfist. A hero trial for Doctrine is currently available and will last throughout the weekend. The exact release date for Doctrine has not been announced. Last month, another hero, D. Mon, was introduced on August 11. Players can explore Doctrine's abilities and gameplay style during the trial.