Zhao, the Moon Slayer (#376)

Type: Legendary Creature — Human Soldier

Text: Menace
Nonbasic lands enter tapped.
{7}: Put a conqueror counter on Zhao.
As long as Zhao has a conqueror counter on him, nonbasic lands are Mountains. (They lose all other land types and abilities and have "{T}: Add {R}.")

Set: Avatar: The Last Airbender (#376)