I loved those games back in the day. Played through em plenty of times.
Got the Ho-oh from Mt Battle back then, and it's now sitting in my Switch. Along with a few Shadow Pokemon. In fact, the last time I played Ranked in SV, I used a Shadow Suicune. Thankfully Ranked blocks out nicknames, so my opponents didn't get to see the ridiculous name my 14 year old self gave it. They only see Suicune the Triumphant.
Its name is
DAMP BARK
.
currently waiting for my turn in Master Duel.