A Death Decay spell was cast, and within a 25-meter radius, it inflicted 400+ magic damage every second, lasting for 15 seconds.
The total damage caused by this skill exceeded 6000+, which was comparable to the Bone Teethe spell the BOSS flung out.
In 15 seconds, the BOSS could kill 210 Skeleton Warriors with its Bone Teeth.
But on Zi Liyuan's side, there were a whopping 1200 Shadowy Skeleton Mages, each casting Death Decay; in the middle of the BOSS's Undead Army, countless areas became barren with white bones.
Zombies had high health and couldn't be insta-killed by the first wave of skills, but Skeleton Warriors were fragile, and even with elemental resistance skills boosting their Magical Resistance, they still could not escape their fate as cannon fodder.
So, as a round of Death Decay smashed down, innumerable gaps appeared in the BOSS's Undead Army, leaving behind mounds of bones on the ground, indicating that seconds before, the area had been crowded with skeletons.