Castle Locthwain
Land
This land enters tapped unless you control a Swamp.
: Add 
.
: Draw a card, then you lose life equal to the number of cards in your hand.
Without Locthwain's persistence, the realm would stagnate and die.
Titus Lunter
Rulings
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)
Although the common lands have basic land types, they aren't basic lands.
(wotc • 2019-10-04)
No player may take actions between the time you draw a card and the time you lose life.
(wotc • 2019-10-04)
Rulings
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)
Although the common lands have basic land types, they aren't basic lands.
(wotc • 2019-10-04)
No player may take actions between the time you draw a card and the time you lose life.
(wotc • 2019-10-04)