OverWatch is the new team based FPS from Blizzard. The Black Hokage has access to the OverWatch Beta gameplay, so The Black Hokage decided to share some Mercy Gameplay from the OverWatch beta. This isn't a OverWatch Mercy Guide, but the OverWatch gameplay you do get here is some top notch Merchy Gameplay. Feel free to Google the story of the healer Mercy before doing the Mercy Challenge. OverWatch Tips And Tricks might help as well in Blizzard OverWatch. Download our app. ● Android app.