Mercy is one of Overwatch’s most controversial characters. Originally, the healer was able to Resurrect multiple allies at once, capable of turning the tide of a match in an instant. But she has since seen multiple changes to both her kit and core design intended to level her out.
It was in late 2017 that Mercy’s Resurrect ability was altered to help with the tempo of matches and make her less of a defining factor in the outcome. However, even her replacement Valkyrie ultimate proved exceptionally potent and she quickly overtook the meta once again. Much of this was due to Mercy’s constantly regenerating health, ability to chain-heal allies, and instantly resurrect one or two people on her team while Valkyrie was active.
Find out why it's taking so long to bring map-making tools to Overwatch.
Blizzard stepped in once again and hit the angelic heroine with yet another substantial nerf to her ultimate in January 2018. Mercy’s alteration caused her pick rate to tank across various ranks, the most substantial of which occured at Grand Master where she dropped a whopping 80%.