Zhao, the Moon Slayer is a rare Legendary Creature — Human Soldier card from Avatar: The Last Airbender (TLA), collector number 376. Current market price: $0.66 (foil $0.82), TCGplayer market prices via Scryfall.
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}.")