Frostfury Zombies were a notch stronger than Wandering Bones. Judging by the usual rankings, they were probably Quasi-Elite Tier.
That meant they had elite-level attributes but still fell short of true elite creatures.
Death God's Visage gave Bai Xiaowen Tier Suppression over them, greatly reducing their offensive effectiveness.
In fact, that was why Bai Xiaowen had chosen the graveyard as his Trial Grounds. It gave him a natural advantage and a chance to earn more points.
Besides, undead residents might lack creativity and passion, but they were excellent at developing territory and building infrastructure.
Undead needed neither rest nor food. They could work around the clock.
Each Frostfury Zombie he killed earned Bai Xiaowen two trial points.
His Bone Archers were also gradually mastering Spirit Force attacks. By the time they were halfway through the second tomb, all ten had learned how to use them.
Bai Xiaowen had grown much more adept at directing his summons to launch Spirit Force attacks. That also improved his own use of Origin Force.
It was worth noting that Bai Xiaowen's Origin Force and the undead monsters' Spirit Force were both forms of unique energy, governed by the same principles of control. The same went for the Astral Qi used by Li Shuyi, Han Xu, and Cecilia, as well as mages' mana and the Battle Qi used by Western warrior classes.
The difference lay in the purity of the energy, which showed up in their different base priority levels.
Bai Xiaowen then tried controlling melee elite creatures like the Shadow Assassin. The Shadow Assassin's revival had already told him that he had been in the Trial Grounds for more than twelve hours.
At first, Bai Xiaowen could control three elite creatures at once. He then guided them step by step in channeling Spirit Force