Sacred Foundry

• WWizards of the Coast2018-10-05
  Official Ruling
  Unlike most dual lands, this land has two basic land types. It's not basic, so cards such as District Guide can't find it, but it does have the appropriate land types for effects such as that of Drowned Catacomb (from the Ixalan set).
• WWizards of the Coast2018-10-05
  Official Ruling
  If an effect puts this land onto the battlefield tapped, you may pay 2 life, but it still enters tapped.

Rulings via Scryfall