Nine Infants was indeed extremely weak, just as Wu Pifu had expected. What did one-tenth or one-fifth even mean? Compared to its prime, it might not even possess one or two percent of its former strength and essence.
Wu Pifu felt that Nine Infants was exceedingly cunning. It acted as if it disdained Wu Pifu as a mere mortal, speaking without reservation regardless of whether its words were good or bad, but there were countless schemes hidden in its heart. To say nothing else, its claims about how much strength it possessed were false.
Wu Pifu had first suspected that Nine Infants was weak when he struck it with his blade and triggered Kratos's title effect.
"When you battle any being more than ten times your size, every thirty seconds, one contest of strength against it is guaranteed to succeed (this is a limit-breaking attribute, secondary supreme priority). Furthermore, that contest of strength is guaranteed to produce a crushing effect. Crushing effects include QTE effects such as tearing, disintegration, severing, and execution, with varying results depending on the difference in strength between combatants."
In his experience, the stronger the enemy was and the more their strength exceeded his own, the less likely his guaranteed success in a contest of strength would grant him a tenfold explosive increase in power. In the most extreme battle in the Warp against the Root Source, he had only raised his power to a level barely greater than his opponent's.
If Nine Infants had truly been as powerful as it displayed, then he would not have unleashed a tenfold counterattack through that contest of strength.
So Wu Pifu had grown suspicious then and there. But Nine Infants was simply too cunning. It derailed the conversation, then immediately erupted with world-destroying power, once again