Rei has the ability to make webs through a special type of liquid that was created by infusing spit or sweat with chakra. SHe could make this into webs of chakra, that only Neji and his gentle fist were able to cut, or create a thicker gold liquid that hardened into a chakra-blocking metal. This hardened material could be fabricated into body armor that could completely defend her from physical attacks and impacts, kunais and other throwing weapons,In keeping with her spider-theme, she could summon the Kyodaigumo, a giant spider that could use the Rain of Spiders technique.
Rei has the byakugan eye in her left eye, a eye that she ripped out of the dead body of an Huugya, while coming across a battlefield in her travels. Because she only has the byakugan in one eye, the blind spot is much larger, increasing to a small portion of her right side, that extends all the way to the hip. Also, the eye will soon stop working, because Rei is not the eye’s owner, so she has a limited time that she can use it, and as the byakugan eye gets older, the blind spot gets bigger.