Wood Release: Great Wooden Mallet

Yamato creates a wood clone with a giant wooden hammer as a hand, which jumps at the opponent and clobbers them with it.

Mokuton: Ōkizuchi is an advanced and specialized jutsu featured when Yamato creates a wood clone with a giant wooden hammer as a hand, which jumps at the opponent and clobbers them with it. This jutsu represents the pinnacle of Wood Release Kekkei Genkai, a unique genetic ability enabling the manipulation and creation of wood-based structures and techniques.

To delve deeper into this jutsu:

Mokuton (Wood Release): This exceptional elemental nature kekkei genkai is possessed by individuals such as Yamato and the First Hokage, Hashirama Senju. It melds Earth and Water elements, resulting in the ability to generate and control wood. Users of this kekkei genkai possess remarkable versatility as they can create wood from their bodies or manipulate it from the surrounding environment.

Ōkizuchi (Great Earthquake): The term "Ōkizuchi" translates to "Great Earthquake" in Japanese. In the context of this jutsu, it signifies the tremendous power and force harnessed within the technique.

Mokuton: Ōkizuchi stands as an especially formidable Wood Release jutsu. Within this technique, the user manifests colossal wooden roots and branches from the earth's depths. These wooden structures surge forth with immense force, akin to an earthquake. The roots and branches are adeptly controlled, allowing for the ensnaring, crushing, or immobilization of adversaries. This jutsu serves as a testament to the sheer might of Wood Release.

Yamato, one of the select few characters in the series wielding the Wood Release ability, employs Mokuton: Ōkizuchi on various occasions to demonstrate his mastery of this art. It's worth noting that Mokuton jutsu, including Ōkizuchi, plays a pivotal role in the Naruto series, particularly in the context of Hashirama Senju's legacy and the rich ninja world lore.