Weathered Runestone

• WWizards of the Coast2021-02-05
  Official Ruling
  Players can still play lands from graveyards if an effect allows them to. Similarly, effects can put land cards onto the battlefield from any zone.
• WWizards of the Coast2021-02-05
  Official Ruling
  Look at the card as it exists in your graveyard or library to determine whether it can enter the battlefield. If it’s a double-faced card, use its front-face characteristics only.
• WWizards of the Coast2021-02-05
  Official Ruling
  If an effect exiles a card from a graveyard or library and allows a player to cast it, the player may do so. The spell is cast from exile.

Rulings via Scryfall