Hmmm, magic is heritary yes? So, is specific magic prowess also? Like, is Harry basically a young Eb? Superpowerful, good at a bit of everything, can beat you in combat because he'll use what you don't have, ect? I know Harry still has some holes in his powerset but most of that I'm starting to think is purely lack of practical practice with it. He adapts and evolves new styles and abilities between almost every book.
I'm hoping if(when?) we see Ramirez vs Harry that Harry has that proverbial rabbit to pull out of his hat. The wizardly insight he's been putting together knowing full well he's gonna have to neutralize him eventually.
Mmm, harry is supposed to start shape shifting eventually I think? That's water magic, first step to overcoming something would be becoming more familiar with it's workings.
I don't think magical style is necessarily genetic. I think an academic type heritage fits the Dresden Files better. Apprentices have styles most similar to their masters, even if their specialties don't really lead to direct copies.
For example, with Harry and Molly, both of them hammer away big and loud at enemies with their specialties. Fire, ice, and force for Harry vs illusions for Molly (One Woman Rave, anyone?). Compare that to someone like Ramirez that is more controlled with his entropy fields or Luccio with her fiery needles.
As a side topic, do we have any other explicit master/apprentice relationships than these?
Eb --> Harry --> Molly
Luccio --> Morgan
Simon --> DuMorne --> Harry / Elaine