Well according to that pikachu short before the diancie movie, klefki can apparently go to alternate dimensions by opening hyper-dimensional keyholes of sorts. Defiancy of space: checked.

As for time defiancy, well, is a fucking key ring, it can be around for years. If you think not, just leave yours in a drawer and come back for it years later. Defiancy of time: fuckin’ checked.

Oh Dialga and Palkia, not even running Fire Blast or Earth Power will save either of you from getting hit with a priority Thunder Wave!