Ambrose let go of the man while the pain cam back. He hated that witches could do that to his body, create such pain that he would surely lose. No he could not lose, he had to protect Buffy and Evie.
Roaring he tried to pull himself back up, but the pain was get to him. If he didn't push past this there would be no stopping Lucius. Finally he got enough strength to again, knock Lucius back down again, but instead of getting up he jumping up, he jumped on top of the man, biting at his neck. The blood was not all the good, but it did give him the upper hand. If there as blood in the air he would not let go of the Beast. Just then he was rolled by Lucius.