This is a Fanfiction This is a story about the Warriors series by Erin Hunter. It is non-canon, so it is not from the books, but all credit is given to erin hunter.
Cloudstar, my mother was a great leader. This is the story of how my mother made Cloudclan.

Cloudpool walked out of the Riverclan deputy den. She wasn't surprised to be appointed as deputy since she was Thunderclan, Skyclan, and Riverclan. Every cat in Riverclan were pretty much mixed with Riverclan, Skyclan, and Thunderclan. So were other cats that were kicked out of their clans. Her mate, Lioncall came out of the warriors den. Cloudpool walked over to Lioncall and whispered "We should start our own clan of cats who are mixed with Thunderclan, Riverclan, and Skyclan, and we should call it Cloudclan!" "I agree." He whispered back. Cloudstar dashed into the leader's den and asked Gingerstar if he would let her lead a new clan. He agreed and allowed her to get the cats who were kicked of the clans.

Later, Shadowclan attacked, and they were in for a big surprise. "Cloudclan, Attack!" Cloudstar yowled. She saw Seedstar echo what she said. Thousands of Cloudclan warriors came pouring out of dens, attacking Shadowclan warriors. Shadowclan retreated, leaving Cloudclan as a Clan!