I actually enjoy to play every other support than Mercy, and it does not matter of QP or Ranked.
Her whole kit and that she has to switch to pistols to do any damage at all (herself) just feels unintuitive/unenjoyable to play as! FOR ME!
Her whole kit is just based around staying out of sight of the other team and flying towards safety with her guradian angel ability!
Personally i’d want a full rework like Symmetra and Torbjörn are getting. Which should feel way more engaging to play as like all the other supports!
IF I HAD TO EXPLAIN MERCY IN ONE WORD…
BORING