Mercy is a support hero in Blizzard Entertainment's Overwatch, first released in 2016, and her ultimate ability has become one of the game's most recognisable sounds. In the original game it was Resurrect, linked to her famous Heroes never die line, while Overwatch 2 reworked it into Valkyrie, which boosts her healing and movement. Clips of the activation spread through gameplay videos, montages and memes because it instantly marks a turning point in a match. Players still use it to celebrate saves, comebacks and support plays.