I'm doubtful, besides the annual and a few Ms. Marvel issues did the guy ever appear in any other comic? Even in the annual he was just a red herring about potentially being a living infinity stone that Quantum turned out to be.
Mentioning Senior Magico reminded me the magic Miles conversation has come up before (way back in 2016) from both of us as a matter of fact. You even came up with a pretty cool original magic villain, so it's cool to see the idea still floating around.