Vexana is adoptive daughter of Empress Lisa. Lisa has adopted 4 girls as her adopted daughters and Vaxena is one of them. Lisa adopted them because she never had children of her own. So she raised these 4 girls including Vaxena. Lisa gave all of her adopted daughters some amount of her Royal blood to give them super powers. Every sister has different. Vaxena has too. Vaxena is the oldest sisters out of the 4. She is mostly believed to take the throne After Empress Lisa as Lisa also wants Vaxena wants to take throne after her

Vaxena is training her powers in the training ground with her sisters and knights