If he had just thought the other party might be a scion of a major family, that person's words immediately felt off now, as only a swindler would deliberately speak in such vague terms to instill fear.
A genuinely capable person would never engage in such idle talk.
"I am a merciful person, reluctant to directly point out others' shortcomings. Let's do this, I'll tell you first, and if you think it's appropriate to speak out, I don't mind!"
Sun Qiang offered a faint smile, lowered his voice, and spoke in a tone audible only to Ling Buyang:
"If the information I received is accurate, when you initially practiced Mo Dao, there were some errors that caused a small portion of your zhenqi each time you used your saber art to flow into areas it shouldn't have. Over time, this created a blockage."