>>34786093Catch the Jolly Pancham with an Account Ball.
Raise its friendship points by waiting a week or a month. It depends on the Pancham.
The Jolly Pancham should be holding some Lava Cookies by now. Delete them by tossing them.
Try facing off the sad pancham again now.
If all else fails just google it. There's a pastebin guide on google that Joe made which didn't make it onto Serebii. It didn't mention how best to raise the EVs and IVs, but it did offer a neat item Panchams can hold.
Once you've caught it just stick it into the box and boom. You've gotten past it. Never delete the cookies or it'll mess your setup.