Magus of the Moon

Nonbasic lands lose any other land types and abilities they had. They gain the land type Mountain and gain the ability " tap : Add red mana ."

If a nonbasic land has an ability that triggers "when" it enters the battlefield, it will lose that ability before it can trigger.

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.