Zhao, the Moon Slayer — ruling 1

If an effect states that a land enters tapped unless a condition is met, Zhao, the Moon Slayer's second ability has it enter tapped even if that condition is true. For example, you may control a basic land while playing Abandoned Air Temple, but Abandoned Air Temple will still enter tapped.

Zhao, the Moon Slayer — ruling 2

While Zhao has a conqueror counter on him, if a nonbasic land has an ability that triggers "when" it enters, it will lose that ability before it can trigger. Nonbasic lands will lose any other land types and abilities they had. They will have the land type Mountain and the intrinsic ability "{T}: Add {R}." This effect doesn't affect names or supertypes. It won't turn any land into a basic land or remove the legendary supertype from a legendary land, and the lands won't be named "Mountain."

Zhao, the Moon Slayer : règles, fonctionnement et interactions (MTG)

Zhao, the Moon Slayer is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Menace Nonbasic lands enter tapped. : 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 ": Add .")

How it works : Zhao, the Moon Slayer

Original English text — Wizards of the Coast / Scryfall

#1October 2, 2025· Wizards of the Coast
If an effect states that a land enters tapped unless a condition is met, Zhao, the Moon Slayer's second ability has it enter tapped even if that condition is true. For example, you may control a basic land while playing Abandoned Air Temple, but Abandoned Air Temple will still enter tapped.
No other card is named in this ruling.
#2October 2, 2025· Wizards of the Coast
While Zhao has a conqueror counter on him, if a nonbasic land has an ability that triggers "when" it enters, it will lose that ability before it can trigger. Nonbasic lands will lose any other land types and abilities they had. They will have the land type Mountain and the intrinsic ability ": Add ." This effect doesn't affect names or supertypes. It won't turn any land into a basic land or remove the legendary supertype from a legendary land, and the lands won't be named "Mountain."
No other card is named in this ruling.