Can we get an update where we can ping how many stacks we have on champs where total stacks are relevant? It would help in getting information across to a team quickly.
It would have to be a self ping, so that flaming teammates can't taunt someone with it when they're behind/mess up
Kindred, Nasus, Veigar, Chogath and they're respective infinitely scaling skills immediately come to mind as obvious ones.
Other ones could include:
Draven for adoration stacks
Kayn for transformation progress
Rengar in pinging which hunts have or have not been completed.
Sion bonus health
Sona power chord progress
Dark harvest total
I'm sure I'm missing a few more.