Far Wanderings

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
Threshold — If there are seven or more cards in your graveyard, instead search your library for up to three basic land cards, put them onto the battlefield tapped, then shuffle.

Search your library for a basic land card and put that card into play tapped. Then shuffle your library.
Threshold Instead search your library for three basic land cards and put them into play tapped. Then shuffle your library. (You have threshold if seven or more cards are in your graveyard.)

The List

Zendikar Rising Commander

Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle your library.
Threshold — If seven or more cards are in your graveyard, instead search your library for up to three basic land cards, put them onto the battlefield tapped, then shuffle your library.