It was not the knowledge of his mothers pain that stunned Daekol, despite what some may assume. From the moment of his birth, he knew he was different and things like emotional connection and solace were entirely irrelevant. As a Sovereign, he understood the cruelty of nature far better than others, and he adapted to it.
No, what stunned him was the unfiltered sensation of pain. As a Sovereign, he could even command the universe, let alone his own body, so he had long diluted the sensation of pain to avoid distraction.
It wasn't like he was bothered by it - he had the strength of mind to ignore it. But there was also no need to excessively feel pain either. Now, though, he seemed to be feeling pain without any reduction or dampening.
The shock was from the fact that Lex seemed to have overwritten his command over his own body somehow.
