We need the command to show our missing avatars.
Lately I've noticed there is a group of trainers such as Balotelli, Billi, Fred, BlueKecleon, Duck-47 and me for explample, that likes to collect avatars and spend. Some of them are quite expensive and behind the regular and premium avatars there's also a big market for the shadow and shiny ones. Having a command to show your missing avatars will improve its commerce. A text list such as the missing pokes would just fine.
PandaWarrior also does a good use of the avatars. 😂