Even with Zhou Tian's great strength, he was incapable of leading his Sheepmen to defeat the Undead Monsters under the command of the Undead Overlord. Therefore, Zhou Tian needed to consider how to use the Sheepmen under his command to achieve the goal of annexing the power of the Undead Overlord.
This problem was initially problematic. However, if Zhou Tian were to solicit the cooperation of the Blood Moon Lord, the problem would no longer pose any difficulty.
Zhou Tian's Sheepman Tribe indeed had no means to pose a threat to the Undead Monsters under the Undead Overlord. But unlike Zhou Tian, the Blood Moon Lord, as a longtime rival of the Undead Overlord, controlled monsters that were not the least bit weaker than the Undead Monsters.