原文If a nonbasic land has an ability that causes it to enter the battlefield tapped, it will lose that ability before it can apply. The same is also true of any other abilities that modify how a land enters the battlefield or apply "as" a land enters the battlefield, such as that of Vesuva or Cavern of Souls.
訳文非基本土地にタップ状態で戦場に出る能力がある場合、その能力は適用前に失われます。また、土地が戦場に出る方法を変更する能力や、土地が戦場に出る「際」に適用される能力(Vesuva や Cavern of Souls など)についても同様です。
2024/06/07
原文Nonbasic lands lose any other land types and abilities they had. They gain the land type Island and gain the ability ": Add ."
原文Harbinger of the Seas 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 "Island."
原文If Harbinger of the Seas loses its abilities, it continues to turn nonbasic lands into Islands. This is because effects that change subtypes are applied before considering effects that remove abilities, regardless of the order in which those effects started.