(Based on a true in-game story)
Mondo had been interested in Lucarios for a good while now, but his current trip to Hisui has also gotten him fascinated by Alpha Pokémon of all kinds as well, though he wondered if such thing as an Alpha Lucario could exist. One coincidental Massive Mass Outbreak during a visit to the alabaster icelands left him face to face with an Alpha Lucario…a SHINY Alpha Lucario that is! Mondo had brought one single ultra ball with him in case he found anything interesting he wanted to take back with him, and this Shiny Alpha Lucario most certainly fit that criteria and then some.

Art by  Signified-Blue