Jesus Arceus...
This moveset is... not good at all. You can't always rely on other mons to set up for you. They can easily use something like Toxic or send in a Steel or Poison Type against you. What's stopping them from attacking before you get the chance to Copycat or Baton Pass. If this is meant for something like Showdown, Baton Pass can only be used in AG formats, and Sylveon is terrible in AG.
Sorry if I'm being a bit harsh, but this is just not a good moveset. I advise that you study competitive play before continuing to post movesets. Have a great day.