At the bottom, the Flowing Swamp Divine Kingdom, one of the three major factions in the Black State Swamp, used the city as a defense facility to counterattack!
This Divine Kingdom was the territory of a Beginner Grade Master God-Tier Lord!
Judging from the battle situation, the Flowing Swamp Divine Kingdom had already fallen into an absolute disadvantage because more than half of "Their" defense wall had been destroyed under the continuous attack of the conceptual divine power of the Illusionist Clan, and more than 80% of the Undead army that was defending and counter attacking in the Divine Kingdom had died!
If it weren't for the fact that the surviving undead were all experts of the Flowing Swamp Divine Kingdom and were defending and counter attacking at the cost of their souls, this Flowing Swamp Divine Kingdom would have long been destroyed under the powerful offensive of the Illusionary Race.
However, the current situation was also very bad.