Damon stood coldly in his blood-red bone armored and his bone scythe shrouded in hell flames. The ground on which he stood was losing all signs of life and turning grey while the air around him was still and stagnant.
He gazed at the grey wolf coldly and pondered on what next to do. While this barrier prevents anything outside from noticing what's happening inside, he refused to believe the arch mage won't notice something if they went beyond the power level they were currently fighting at.
The eyes of the three-tailed fox revealed the same emotions as Damon. The formation is an exclusive ability only available for fox spirits at a certain level so she knew how it works. It can only suppress power up to a certain level. Anything beyond that would make the formation unstable, causing the aura to leak.
Once that happens, it's over for them!
Damon and the fox spirit knew this and were reluctant to continue their battle.