Just hers. Levi eyed her for a few moments, wary of what she was telling him. The only ones he knew that could heal that quickly were Titans or Titan shifters. He didn't believe that she was either, truthfully, but it made him all the more cautious.
"Not your power?" He cocked his head to the side, bringing the items closer to his body. His face didn't show any surprise as she doubled over in pain, instead he took a few steps back away from her as instructed.
He shook his head, "I know no one named Sylar." Levi had not seen anyone named Sylar posting on the network, nor had he met anyone with that name either. Levi was good at remembering faces, names, and just about everything that a person told him. One never knew what information would be useful, so it was best to just keep a little bit of everything in mind.
"Relax," he held out his free hand, keeping eye contact with her. He'd dealt with people freaking out during missions. Sometimes he talked them down, other times he slapped the shit out of them. This? This took more of a delicate touch since he wasn't sure what she could do.
"I don't know what your powers are, or what you're capable of. I'd rather not find out by experiencing them first hand." He didn't have any of his gear. The only thing that he did have were his fighting skills, which weren't up to par due to his injury. Still, if push came to shove he would do what he had to do in order to incapacitate her. "I do know that you can control it. Everyone is capable of control. Just relax, breathe, and concentrate on holding them in."