Naruto: Ways Hashirama’s Wood Release Is The Strongest Kekkei Genkai
Wood Release is a Kekkei Genkai created by mixing Water Release with Earth Release. This Kekkei Genkai is quite rare and hardly ever occurs naturally, which is one of the many reasons why it is coveted. Hashirama Senju, the First Hokage of Konohagakure, is the only person in the series known to possess this Kekkei Genkai naturally.
Wood Release Can Restrain Tailed Beasts With Its Powers
Tailed Beasts are mighty beasts of chakra, created by splitting the 10-Tails by Hagoromo Otsutsuki. These beasts are known to be incredibly powerful and can easily wipe out a country if let loose.
One of the many ways to control a Tailed Beast is to use the Kekkei Genkai of Wood Release against them. Being a powerful Kekkei Genkai with the power to restrain beasts, Hashirama used it to put several of them under his control.