Rearranging the Undead ritual to summon Arthas would take a considerable amount of time.
After all, having inherited a portion of Qin Feng's combat power, Arthas's Double Resistance Defense had become monstrously high.
He was no longer a being that could be easily defeated.
Even if the massive Undead Legion were to just stand there and let the enemy slaughter them, it would still take a very long time to wipe them all out.
It wasn't as if Qin Feng could just wish for that many of them to die...
...and they would immediately drop dead.
During this time, Qin Feng's Divine Chosen Army remained stationary, holding their position. They didn't rashly approach the heavily guarded Great Wall, which would have made them living targets for the ranged Imperial Soldiers hiding behind the fortifications.
However, the squadron of Extraordinary Dragon Cavalry soaring through the sky was far more active.
