[He doesn't remark that it isn't possible. Unless he learns magic over night or is bitten by a monster that is stronger than Kaname. Even then, vampires that were once humans are still very weak. He would have to do a lot of horrible things, such as kill and eat his uncle, in order to be something of consequence.
Kaname pulls him up effortlessly, the hint of a smile registering on his mouth.]
That was an interesting expression you had just a few moments ago.