Death Battle2010

Boomstick:
[about Toph] Her greatest achievement is the discovery of an all-new bending art, one thought to be impossible: Metalbending.

Wizard:
By manipulating the earthly composition within, Toph can bend nearly any type of metal just as well as stone, the exception being highly purified metals such as platinum.

Boomstick:
Toph quickly mastered metalbending, and went on to teach it to others.

Wizard:
She eventually even founded and led a metalbending police force.

Boomstick:
And that's after conquering Earth Rumble IV, holding up a building the size of a castle, defeating an entire army almost singlehandedly, and dueling King Bumi to a standstill. And that guy's conquered an entire hostile city by himself.