As we all know, Uchiha use various power ups to keep up with different nin in battle. For example, Sasuke Uchiha uses drugs, sharingan, cursed seal. But that?s not all, the most common trait of an Uchiha is to steal different stuff from other people. Like various jutsus Sasuke stole from people (using red eyes, which is a stolen version of Byakugam),

Spoiler:

or the animals Sasuke shamelessly took from Orochimaru after defeating him.
Of course it would?ve been impossible if he hadn?t stolen weasel?s way of dealing with Orochimaru.
Spoiler:

The reason why all Uchiha do is steal because their original jutsu = nothing.
Spoiler:

The history of their Katon jutsu goes back to the foundation of Konoha, when the infected, weakest hyuuga ever born was beaten to a pulp by wood hokage. This first Uchiha thought that it would be good to invent some fire a.k.a. katon jutsu to get rid of wood, by burning it. Since then, the weakest ever jutsu type was born.

Spoiler: