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 Alter Terrain In Battles As Seen In Hashirama’s Fight Against Madara
Being a Kekkei Genkai that can produce vegetation out of nowhere, Wood Release is quite incredible at changing the terrain during a fight and make that an advantage to the user. By gaining total control over the surroundings, this Kekkei Genkai gives the upper hand in all sorts of combat.
When Hashirama Senju was reanimated by Orochimaru for the first time, this ability gave Hiruzen, the strongest of the Five Kage back then, quite a lot of trouble.