If Aura Wheel is used by any Pokémon other than Morpeko, it will fail.
This can be shown in this replay. In the replay, I had Aura Wheel used by Aegislash in Balanced Hackmons. It failed and gave the following message:
Aegislash used Aura Wheel!
But it failed!
(Only a Pokemon whose form is Morpeko or Morpeko-Hangry can use this move.)
In addition to Balanced Hackmons, a Pokemon can learn Aura Wheel via Mimic. It will also fail, as proven by this sentence:
Aura Wheel can be learned via Mimic, but fails when used.
However, if you were to transform into Morpeko, (i.e Imposter Ditto) Aura Wheel will work.
> However, the move can be used when the user has transformed into Morpeko.
Hope this helps.