Cleo is a warrior in both power and spirit. She is stable, young, cute, and has innate magical abilities. In fact, her capacity for magic use led Leknaat to grant her a Fire Rune, to which she uses for great things throughout her journey with Master McDohl. She is a truly great friend, unique and spirited and forever cheerful even in the line of danger. She seems to have a crush on Tir, although it never develops into anything more than a relationship of service and duty.
In the Duelling League, Cleo has had minimal luck. Many seasons ago, she was defeated by Nina of Wyndia; in her second appearance, she defeated the ninja Edge but was crushed soundly by Lenus, and the third time didn't prove to be the charm as a snuggly little white furball sent her down to light. She didn't get to where she is by giving up, however, and won't stay down in light without a fight.