The Enterprising Healer

Feel like these came out too late in the season. I've done hundreds of M+ on all roles already this season alone and already fatigued.
If it wasn't season-locked and it was just do 8 different Mythic+ dungeons for each role, it'd be good.

This achievement is not awarded retroactively.

I've completed every seasonal keystone dungeon on 12 or higher, and I have 0 progress on this achievement. Odd choice imo.

Adapted this from the comments in the Tank and DPS achievement and you can use this to check which dungeons you're missing (if you don't want to just check from the achievements interface in-game ^^):
/run local id=42141 for i=1,GetAchievementNumCriteria(id) do local n,_,c=GetAchievementCriteriaInfo(id,i) if not c then print("Missing Heal:",n) end end
For Tank and DPS respectively, you can use these:
DPS: /run local id=42144 for i=1,GetAchievementNumCriteria(id) do local n,_,c=GetAchievementCriteriaInfo(id,i) if not c then print("Missing DPS:",n) end end
Tank: /run local id=42139 for i=1,GetAchievementNumCriteria(id) do local n,_,c=GetAchievementCriteriaInfo(id,i) if not c then print("Missing Tank:",n) end end
I hope this helps someone. :)