Vermithrax watched them harmlessly escape from his inferno tactic while flapping his wings, so apparently he couldn't simply just crazy shoot fire at them, that was ok, he had a few other perks. He looked around analyzing the situation, they were in 3 now, the man, the woman, and the undead dragon, the dragon was going to be a though challenge, dragons always were, the man just seemed to be a simple mortal man with some talent in magic, not a real threat, and the woman, although he did not really considered her a threat was the one in control of the dragon and he could feel the power emanating from her, so that was settled, he was the main target, when out of the way, taking the other one out would be easy.
He began to fly a circle, his golden eyes looking to the undead woman, he then leaned towards her and began to fly crazy fast in her direction, he leaned his back legs up and when close enough he tried to crush her with his claws.