There was only death and destruction.
Hundreds of thousands of Spirits flooded the battlefield less than 24 hours after the surprise attack had been initiated.
Zayn used his Spirit Fusion with the Demon King Spirit to obliterate the strongest Blessed before he resurrected them as Spirits as well. His surprise attack was a great success and the following 24 hours were nothing short of mindless slaughtering.
Zayn focused on manifesting as many Spirits as possible while simultaneously absorbing the Soul Orbs Glutton provided ceaselessly. Their combined efforts allowed the Spirit Army to expand four times in size.
But why was that even necessary now that the Blessed Army was slaughtered mindlessly? The answer was simple; their most formidable force had yet to arrive. The Divine King of the human race had yet to arrive, and Zayn had to prepare for the worst.