My 3DS got banned a few months ago during the ban wave, so I can't use GTS/WT to complete the ded for the charm like I did in SM. I'm going to (try to) SR all shiny legendaries and beasts.

Should I...
>Play USUM through and then trade the complete dex to a new profile and play it over again to get the charm again before the wormholes?

or...

>Do the wormholes without the charm