"Everyone, recover for now. I'll explain the method to raid Gibli in a moment." Yone wanted everyone to ease up mentally first.
It would not be easy to face off against Gibli since he wasn't like the other monsters, and they already had enough training on mental strength, so any more would only be harmful and not beneficial in the slightest.
The boss was complicated. It was by no means an easy feat to achieve, as he possessed a particularly annoying ability- his long sword- that could lead to a team wipe, causing significant trouble. Additionally, his weapon was of high grade, having a higher critical damage rate.
The fight would require a high degree of concentration because a single mistake would cause everyone to be buried together. The boss was just that hard!