I downloaded all the event gallery in Generation 7 3DS
for English and install them using PKHex.
And then I was able to obtained through the mystery gift
in Ultra Sun by using Citra. My question is will it pass the
legal checks if I wanted to transfer all these Pokemon to
Pokemon Sword / Shield in the future? I presume the file I
download from this site will pass the legal checks? I don't
plan on doing any trading on the GTS. Would like to battle
with them online too. Every pokemon I downloaded says its
illegal in PKHex.