Daimon Hellstrom and Satana, or Belasco's daughter Ananym/Witchfire would also count as people who are getting a boost from a supernatural heritage, I imagine.
Marvel's always been a bit weird about magic users in general. Some, like Dr. Druid or Amanda Sefton/Jimaine Szardos, are primarily sorcerers in the same vein as Dr. Strange, others, like Dr. Voodoo or Hellstrom, weren't as much spellcasters as they were 'dude with some super-powers, that happen to be magical' for most of their history.
(Although the lines have blurred in the last decade or two, and now everyone can literally do *everything,* as the writers have pretty much abandoned any sort of rules or guidelines for how magic works, or who can do what. I guess it's easy to become a sorcerer in the MU when the writers don't know you can't just do anything you want anyway!)