In the The Legend of Korra episode Beginnings, we see ancient humans being granted element bending powers by lion-turtles. The lion-turtles also remove element bending powers. The process involves the lion-turtle touching the human, and then there's a burst of light. The process is kind of similar to the energy bending we see in Avatar: The Last Airbender, but is never named.
Were the lion-turtles energybending, or were they using some other technique to bestow and remove element bending abilities?