If the Japanese Ninja Yi Sheng Bu Bo only uses Chaos Powder to deal with Luo Yang, and the method Wuweizi taught Luo Yang to break Chaos Powder is correct, then Luo Yang is confident he can defeat Yi Sheng Bu Bo.
The real concern is if Yi Sheng Bu Bo knows other techniques that can harm Yin Spirits—that would make things much more difficult.
Although Shadow Fist has not yet reached the Third Level of Soul Ferry, even with the power of the Second Level, it is enough to stand above ordinary martial arts practitioners.
After all, Shadow Fist passively acquires defensive abilities; the stronger the opponent's physical prowess, the greater Luo Yang's defensive capacity becomes.
However, if the opponent stands still, Luo Yang's Shadow Fist is rendered useless.
In the past, when Luo Yang had just broken through the First Level of Shadow Fist, reaching the Listening to the Wind for Positioning realm, he thought he was invincible.