Through the program Avatar: the past AirbenderA difference of waterbending which a master waterbender utilizes the power of the full moon to control the water within the blood of most living things. Hama, a survivor of this Fire country raids in the Southern liquid Tribe, created the technique while becoming held prisoner in a Fire country cellular. The prisoners received no liquid, so Hama had to improvise. She invested many years building the method and practiced regarding rats that scurried across her cage. Eventually, she utilized her brand new ability to break away, controlling the shield to use their secret to start the woman cage.