"Irritating worm, your illusions don't affect me!" Kreel exclaimed, summoning even more mental energy and attacking Lex. But he made a critical mistake. This time, while Lex was still using illusions mixed with reality to confuse Kreel, he had not in any way magnified the actual strength of his attack.
Kreel was cut off from the laws, though that was a lot harder than it had been with Jeziah. Time and time again, Lex felt his senses playing tricks on him, confusing him about whether the laws were fluctuating or not. He was in danger of relaxing his control over them, allowing Kreel to regain access.
It was only through sheer resilience that he had managed to keep the illusions from affecting him.