It was amazing to Coby that Natsu could take that much. The problem hadn't been whether or not he could survive a direct fight with Saber, but when his safety would become an issue. Knowing Saber better than to assume she would strike down a non-enemy accidentally, he was more concerned for what damage the young man would take before he either calmed down or fell.

"This aura's a little ridiculous," Coby commented nervously, feeling out of place. As a viewer in the stands, he only contributed to Saber's aura even beyond the fact that he was carrying her command seals as well. Though he didn't want things to turn out badly, he couldn't weigh his own options. Should he have throttled his power to Saber a little or given her more in the hopes that it could be settled quicker?

More so, he wasn't sure if damage done in the theater would reflect on the outside world.