+ Stored Power
Stats and Typing:
Coupled with Cosmic Power and Jirachi great typing and defenses, it would make an interesting sweeper set (Calm Mind works too)
I don't totally understand what's exactly the pattern for getting this move (and even the japanese name doesn't help) but since Victini can use it, I don't see why Jirachi couldn't, I just see every mon that learn Cosmic Power being able to use this (should be that way IMO, Starmie would be cool too)
This cute thing doesn't really need more sets, but it would be awesome anyway, it may not have Sygilyph's Magic Guard, but it's typing make it a good enough user of it.