Tapu Lele, it’s here, it’s shiny! I don’t see it getting a lot of use in PvE or PvP, but it’s got a new move so with a rework it might be important someday soon.

Metagross tops the list, it does that a lot, so you need to get one, trade for it, TM a good one, what ever you need to do. Oh, and a shadow one is even more tops. I have a shiny Dialga set with steel moves just for this kind of raid, you should have more than one powered up, get one!