Rulings
Although the common lands have basic land types, they aren't basic lands.
(wotc • 2019-10-04)
Once the common lands (such as Mystic Sanctuary) enter the battlefield tapped, there's no way to untap them with a spell or ability to make their last ability trigger.
(wotc • 2019-10-04)
Related Cards
Printings
Rulings
Although the common lands have basic land types, they aren't basic lands.
(wotc • 2019-10-04)
Once the common lands (such as Mystic Sanctuary) enter the battlefield tapped, there's no way to untap them with a spell or ability to make their last ability trigger.
(wotc • 2019-10-04)