I think it's fine, though I would add what you just explained to the CS so no one gets alarmed. So long as they're tangible and beatable by other vampires, I don't see a problem, especially since you planned for them to be fodder.

GamingOwl, y'might want to clarify any limits on your ability. Copying is fine, but Diamond has a point--it'll be hard to master abilities that older vampires have been refining for centuries. 

Diamond, what do you mean by "energy blasts?" If you mean like a physical push, yeah. I suppose that's fine. Just try to keep the "classic wizard tricks" list short, though, since he also has the power to create illusions.