Ouyang Yudu used the Crooked Path Heresy Skill for a while but then stopped and reverted to using the skills of Wei Wufu.
Because his physical strength was about to become a problem, using the Crooked Path Heresy would only speed up his exhaustion rate and shorten his combat time.
Under the current circumstances, there was no need for him to be too strong, but the ability to last longer was essential.
Lin Shen, however, didn't have to worry so much. His physical strength was still abundant, and his Base Mutation strength was equally sufficient, even without activating the Super Base Pattern.
After ascending to the Alloy level, his Base Mutation Carapace could absorb energy from the world, albeit in small amounts.
After all, the hieroglyphics etched onto the carapace still had some effect, even if they weren't fully activated.