Famed for their battle prowess and ultimate dojutsu, the Sharingan, the Uchiha Clan was a welcomed addition to Konohagakure's rank despite the Senju Clan's initial distrust of the "cursed" clan. What wasn't cursed was the Uchiha's multitude of self-created jutsu, which later became instrumental in defending Konoha from its enemies abroad.
As the Mangekyo was once regarded as the pinnacle of Uchiha power, members of the clan began killing their loved ones to gain its unique abilities. While these differed depending on which eye was awakened, the Mangeko also granted an Uchiha Clan member additional power once both eyes' Sharigan had leveled up.
This ability, called Susano'o, afforded its user an impenetrable suit of armor that proved to be an ultimate defense. After enveloping them in chakra, Susano'o protected and fought for an Uchiha on its own accord. These literal titans could destroy entire mountain ranges with a single sweep of their sword, protect the user from cataclysmic ninjutsu like the Tailed Beast Bomb, and allow an Uchiha to perform other jutsu within the armor's protection while keeping their enemies at bay.