The Naruto clay bloodline in fanfiction often has the ability to self - regenerate the clay. So, if a part of the clay construct is destroyed, it can be regenerated quickly. This gives an edge in battles. Another unique aspect is that the clay can be infused with chakra in different ways. Some users can make the clay invisible by chakra manipulation or even make it change its properties like hardness or flexibility depending on the situation.
One of the unique features is the versatility of the clay. It can be molded into different shapes and forms, from simple tools to complex weapons. Also, the clay bloodline in fanfiction sometimes has a connection to the earth element, allowing for more powerful earth - based attacks in combination with the clay constructs. Moreover, some fanfictions depict the clay bloodline users as having a special sense or bond with the clay they create, which helps them in controlling it more precisely.