To escape the blood spikes, the vampire tried to wrestle control over the blood spikes with Damon. He didn't need to win, all he needed was to weaken Damon's control.
If Damon hadn't moved, he would have been killed. This was the second time he would have died tonight.
Damon suppressed his thoughts and chose to focus on the fight. As long as he could suppress this vampire, he was bound to get all the answers to his questions.
Huff!
Damon inhaled deeply, and his muscles began bulging beneath his skin. His fingernails turned black as they grew longer, while his skin darkened– adding a thin layer of dark red fur.
Just like the book said, Damon couldn't transform until the full moon, so he had to rely on the little power he could muster. He also didn't have a substitute energy reserve, so he couldn't cast tiered spells.