Deathmatch:

Deathmatch is a free-for-all or team-based elimination mode in Overwatch 2 where the goal is to get the most kills, not to capture objectives or escort a payload.

It is used as a fast way to practice duels, aim, positioning, and hero matchups in live combat without the structure of the standard objective modes. Because fights reset quickly and players reappear after dying, Deathmatch encourages constant skirmishes and repeated one-on-one engagements. For example, a player might queue Deathmatch to practice tracking and cooldown timing on Tracer before switching to a ranked match.