Blizzard has announced that Hero stacking will not be possible in the Overwatch Competitive Mode in a future update. The changes are currently being tried out in the Public Test Realm.
Hero stacking occurs when multiple players on a team select the same character. The goal is to combine abilities in the hope that it will prevent the opposition gaining a foothold. Usually you will see this in Overwatch where the defending team will use a small army of Torbjörn and his turrets making it difficult for attackers.
With the change, teams will see a one Hero limit. This will make teams more diverse in character selection as well as preventing Hero stacking.
Blizzard Principal Designer Scott Mercer told GameSpot
The big thing for Competitive Play is we’re going to turn on one-hero limit, so players will not be able to stack more than one of the same hero within a Competitive match. It’s not going to affect Quick Play at all, but it is something we’re going to turn on for Competitive.
The changes will only apply to the Overwatch Competitive Mode, Hero stacking will still be possible in Quick Play Mode.
The new one Hero limit and the newly announced Hero, Ana, is available to play now in the Public Test Realm on PC.
Overwatch is available now for PC, PlayStation 4 and Xbox One.