After careful consideration, Xu Wuzhou discovered two reasons for the Black Bowl's upgrade.

First: The rim of the Black Bowl was repaired, which can be considered a layer of overall restoration.

Second: Xu Wuzhou received spiritual energy, which stimulated the Black Bowl, causing it to release spiritual liquid.

In other words, the Black Bowl doesn't upgrade without reason; it requires a price. Xu Wuzhou looked at the area below the rim of the Black Bowl, wondering how much metal would be needed for the second layer of repair. Would there be other changes with this second upgrade? This Black Bowl is truly mysterious.