So lets say a magic genie for some reason decides he'll grant you one wish. But the only thing that wish can be is for a leak you've seen about Sun and Moon to come true.

A few rules: You can only wish for either one specific Pokemon or mechanic to come true; no wishing for all the Chinese Leaks to come true for example. By that same token, making that one Pokemon real doesn't automatically the Pokemon that were leaked along with it real either. But you could ask for say that postgame hotel with all the champions available for battles to be a thing.

I'd want Loboxter here; I don't know why but I think the design is great and it'd be fun to use. It probably just reminds me of Dudley.

A close second would be that Alolan Fighting Mega Alakazam with No Guard; firing off perfect accuracy STAB Focus Blasts with presumably Mega Alakazam equivalent stats would be a thing of beauty.