Phoenix, along with Patra and Pilar, was once a slave to the Slave King, but escaped and swore revenge, making it their goal to free their people. With help from their mentor Savard, the three demons watched over the Charmed Ones for years to study their powers, personalities and their moves in hopes of mimicking their co-operation. Phoenix trained to become Phoebe Halliwell and channel her powers by injecting herself with Phoebe's blood.