Wyatt rolled his eyes at his Aunt. She was actually trying to get Clark to completely strip his powers, and Wyatt couldn't allow it, so he did the only thing he knew how, which played on his arrogance a bit. "Clark, If I'm the one to bind your powers, they won't unbind, unless I unbind them." He knew he could do that too, because with his projection powers, he could almost put a lock on his spells, to make sure they don't wear off or can't be reversed by anyone but him, so Phoebe didn't try anything like that after he had done it.
The talk about the necklace wasn't really taken notice by Wyatt. He thought that the entire town was under some kind of spell, and one necklace couldn't be doing this to everyone, so he didn't think that it could have been the necklace so he ignored that part of the conversation.
He laughed at Phoebe's statement that he couldn't stop her, because that was exactly what he planned on doing. With a firm grasp on the book and quick look over at Clark. "I promise I'll fix you up back in Lawrence. Contact me there." He reached out and grabbed his Aunt's arm and orbed back to his apartment into the center of the circle, and then stepping out of it quickly as he orbed the last crystal into place. "I think I can keep you under control if I have to."