A Trap!
She hated fighting against such an enemy. The only thing that consoled her was the fact that any killed grandmaster was a loss to her enemy regardless of anything else.
One less grandmaster was a gain to Arthur and her. At least that meant one less enemy to fight in the future.
As for Arthur, he started to think about something else.
In Amera's case, she could use her energy during the fight. But if she wanted, she could simply rest and do nothing.
However this wasn't the case for him. He had his pillar energy continuously activated. This wasn't something good at all for him. He wanted to find a way to cancel this ability or else he would end up losing control over his energy.
As such he tried to close his eyes and rest instead of flying out. However nothing happened. His pillar energy kept swirling around him, making him a bit flustered.