>>58605486adding to my advice from
>>58579350 the Unovan Elite 4 (with the exception of Marshall) are very easy to set up against if you have a Steel-type in the lead. I don't know if your ruleset allows it, but X-items trivializes those fights.
The true problem is the Champion. The Hydreigon lead has a variety of coverage options to stop you from setting up. Maybe Pig can kill it before it gets a chance to use Surf but what she sends out next is anyone's guess.