Since her rework which saw many nerfs, the on-fire ratio is still broken to this day and completely off-scale not only against her fellow counterparts, but even against the entire roaster.
It was changed within the rework and it’s based primarily on rez ratio, which however created a problem with the mechanic already mentioned. Getting on-fire with her now has become a damn miracle, even if you’re staying alive, healing/buffing whatever possible and ressing whenever possible. This happens because Mercy used to have multiple rez charges in the rework, but now only 1 each 30s.
For reference, the average on-fire ratio/match of the whole Overwatch hero pool is around 9.69%
Mercy’s one is 2.57
If we compare it to supports only, it becomes 9.43
Blizzard please fix this issue once and for all.