Introduction/rules here.
Last time I left you all in suspense, I was waiting to receive an answer from my own personal Devil, Jim the Editor. As a reminder, the Devil card says:
The Devil: If you own eight Pokémon or fewer (not counting Pokémon in the Vessel) when you draw this card, or if you are using a party given to you by the Vessel, ignore it and draw another. Otherwise…
Immediate: Catch the first wild Pokémon you see in this area, then have an observer choose a new party of six Pokémon from all the Pokémon you own, except for Pokémon in the Vessel. Revoke any ongoing rules that would make this team illegal.
Ongoing: All of the chosen Pokémon are compulsory.
So I went to Jim with a full update on all my cards and Pokémon, and here is what he said.
Pokémaniacal 