Yeah, Huxley is trained in what we call "arcane lines that reach into other dimensions (including the magic source wall).", so we all do have different sources.
That said; I hope we do some cohesive magic hero team-ups in the near future.
How experienced are our magic users at that? Huxley is pretty much year one-- some arcane bolts, shields, etc. but not a whole lot of Dr. Fate level "screw you" fun.