Symmetra debuted in Blizzard's Overwatch in 2016 as a support hero built around sentry turrets, shields and a teleporter, later reworked into a damage role. Her specialised kit made dedicated mains a running joke in the community, with one trick players often blamed when a team composition was not working. The you only play Symmetra callout grew from that reputation and now circulates on soundboards and in edits as a quick, recognisable insult for anyone who refuses to swap heroes, even outside ranked matches.