Without a doubt, the 'Crawler Empress' was the boss with the thickest health bar Lin Xun had seen to date.
A flurry of attacks from several summoned baby beasts, with the Snow Woman being the first to succumb due to exhaustion, quickly followed by the Valkyrie running out of arrows, and thus, losing the ability to fight.
Actually, the Valkyrie could still fight with melee weapons, but closing in on the 'Crawler Empress' would put her within range of the tentacles' attacks, and any carelessness could result in instant death.
The Nine-tailed Fox lasted the longest.
The Nine-tailed Fox's initial release of thunder magic was quite mana-consuming, but under the coverage of 'Divine Thunder Judgment Cloud', it could launch attacks without consumption, being like a perpetual firepower.