It would have one level, and only one class feature.

That class feature would be:

Every Caster is Now a Sad Remnant of their Former Self (Ex)Every spellcaster in the history of forever is a player character in a game run by one of KevinVideo's DMs. There is no save, no SR, and no way to weasel out of this at all. Ever.

Look of KevinVideo on Google, and see if you can find any of his DM horror stories.

Then you'll understand.