He snarled, giving into those animal, no vampiric instincts. How he wished for one of his prized weapons just then. Where were those bear traps now? Or those blades that tore into his flesh, peeling away the layers of the man until all that was left was the monster. It may have been a clean transformation, but he was a changed man and that could not be so easily anticipated. Later there would be questions of if he were a man at all, given that he was what he once hunted, but he was still just that: a hunter.
He had helped kill beings older than Grigore in the past, now he was just more sure of his ability to do. It made him a bit cocky, but Greg was nothing but a rebel. "I please to ripe you, piece by piece." That or maybe he was just wanted the job done properly and irritating the vampire was the way do it.
As someone so driven, none of that seemed to yield even now. He executed a punch-kick combo because Greg never backed down from a fight. They ended with one side losing consciousness, luckily Greg tended to win more than he lost, but even so his experience was short given the wealth of age the supernaturals of the city were steeped in. But he did have the desire as unfocused as it may be.