Animist's Awakening [mana]XG[/mana]
Sorcery
Rare
Reveal the top X cards of your library. Put all land cards from among them onto the battlefield tapped and the rest on the bottom of your library in any order.
Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, untap those lands.
Source: http://magic.wizards.com/en/articles/ar ... 2015-06-30