Over the years, Krillin has attained a reputation for being the most powerful Earthling in the entire Dragon Ball franchise. Indeed, while he does not hold a candle to the various Saiyan characters within the series, Krillin has made major strides in his training—so much so that Krillin is essentially one of the last Earthling Z Fighter to still actively participate in fights, with other contemporaries such as Roshi, Tien, and Yamcha being largely sidelined. With that in mind, it is very easy to see why he'd be considered the most powerful Earthling character in Dragon Ball's immense cast. But how does this claim hold up when regarding the actual evidence presented within the various Dragon Ball manga and anime series?
Source：https://www.cbr.com/is-krillin-strongest-human-dbz-dbs/
