The first blast of Lightning shattered the stone barrier over Karl's head, but he didn't even notice. He was so caught up in his transformation and power adjustment that the tingle of the strike was lost in the background noise.
In fact, he didn't even notice the next two strikes in rapid succession as he got to his feet and stretched his revamped muscles to ease some of the cramps from the transformation.
The Sword of Champions felt oddly hollow, nearly drained of the excess life energy that it had been storing as long as he had wielded it. But the Haint Claw felt oddly revitalized, as if his advancement had made the adaptive weapon a bit more complete.