>>57899001
>Tinkaton
>Hit two or more Enemy Team members with Gigaton Hammer 10 times
>A-Ninetales
>Knockout 30 Enemy Team members 30 times
>Freeze 10 or more Enemy Team members with Snow Warning

I don't know what Mr. Mime's Challenge are, but it's most likely having to deal with Bashing two or more people against Barriers and kill them or Effect them with Power Swap and kill them