Though your ideas are certainly well thought out, this issue was actually considered a while back. Magicians are supposed to be the master summoners. That is why they get multiple pet types that can adapt to the situation at hand. As I’m sure you will agree given your note about being jealous, class distinction is a commodity, and the ability to summon different pets is one commodity owned by the Magician. Not to mention, I shudder at the idea of making Necro pets any more powerful.

There is something that Necro’s get, that’s the ability to arm their pets.