Cloud is very spirited as well as very fast. He was purchased from Jon Thane, the miller, who would often race the horse against those belonging to merchants' guards. Rand had never known the horse to lose. 
Cloud was ridden out of Two Rivers, into Baerlon, out of Baerlon, into Shadar Logoth, and out of Shadar Logoth by Rand. After Rand rode Cloud out of Shadar Logoth, he, Thomdril Merrilin, and Matrim Cauthon escaped incoming Trollocs by boat, abandoning their horses, including Cloud.