Luffy isn’t Luffy if it’s not boiled.
It was possible to catch Victini in a Pokeball if you had the Liberty Pass from the event (Black and White) and it would have your OT. In this case, the OT would be Ash. Someone else probably transferred it up from Black and White to Sun and Moon and then traded it to you.One Meloetta is 'SPR2013' the other 'GF'. Both in Event Balls
One Victini is 'Ash', and its in a Pokeball. The other is 'GF' in an event ball.
The event database on the main site is still your best friend.