Phosphora's personality is that of a stuck-up teenage girl. She can be quite rude to her opponents and seems to enjoy getting under their skin, such as when she flirts with Pit or points out Palutena's age. She can also be quite lazy, often passing off comments or events that don't concern her and handling almost everything with a nonchalant attitude. Despite these odd quirks, she is a fierce fighter and shows great ferocity in battle. She is very brave and always faces her enemies head on.