I've noticed that the Oricorio Crest doesn't seem to work the way it's probably intended to. It gives a 25% boost to SpAtk and Spd, but it only seems to work for the first turn or two that it's out. When I use my Oricorio in double battles with a partner pokemon who would be faster than it without Oricorio's crest, my Oricorio outspeeds the partner pokemon for the first turn or two (like it should because of the crest), but after that, the partner pokemon outspeeds it for the rest of the battle. It also feels like the SpAtk buff probably disappears too. I've only tested it with Oricorio's ghost form, so it might just be a bug that keeps the crest from working with all forms.