Long ago, Miao Region had a king, and Dali was the royal capital. Its ruler, the Black Miao King, was on the Heavenly List. Dao Qingfeng's White Miao were oppressed to an extreme extent; they once nearly faced extinction and considered the Black Miao their sworn enemies.
After the Black Miao King unified the various tribes of the Miao Region, he naturally wasn't content with just that, his ambitions led him to invade Ba Shu multiple times.
Regrettably, he clashed with the then-dominant Xia Longyuan, an Xia Longyuan who was vigorously advancing in his pursuit to "Control the World." At that time, Xia Longyuan was invincible.
The Black Miao King was effortlessly executed with a single slash. Yes, a slash was used, and that blade is now well-known to everyone—it's called Dragon Sparrow. Dragon Sparrow is very familiar with this Black Miao King... But he wasn't cleaved in two, instead half of his head was sliced off. In any case, he died thoroughly.