Shameless Bone Dragon

Dark clouds blotted out the sky. It would seem that whenever there was a fight against a super boss of this level, a dark environment such as this was only natural.

Black dust drifted down from the sky. It contained a hint of corrosion that obviously wasn't conducive for healthy air. Large complex spell arrays were visible even from here as the SemiGod Undead Emperor, who was floating in midair, manipulated that death magic Forbidden Spell of his which would drain all life.

Before us was an endless sea of undead.

Of course, Aso had others he could rely on in order to dare to directly cast a Forbidden Spell. Thanks to the Undead Lords Gricasio and Feyman slacking off, the undead armies' accumulation had reached a state where just their number alone took up most of this small area. The constant reorganization and training that these undead did while waiting was the best pre-combat preparation for them to become slaughtering machines.