Lu Yan's Undead Rage was already at level 5. It instantly doubled the attributes of all undead creatures he controlled for 75 seconds and increased the movement speed of undead creatures by 50%.
Although it only lasted for 75 seconds, it was already enough.
The surrounding undead were instantly covered in a layer of scarlet. The attributes of all the undead doubled and instantly went berserk, severely injuring the undead knights that were already being surrounded and suppressed.
One undead knight after another was killed before standing up again and becoming undead knights controlled by Lu Yan.
Lu Yan's body also constantly appeared in the surroundings to help the undead quickly kill these undead knights.
About eighty undead knights quickly disappeared as they were drowned by Lu Yan and the undead beside him. Then, they stood up again and became members of Lu Yan's undead.