Talara, Fate Seer

Lifelink
Creatures you control have "{t}: Look at the top five cards of your library. You may put any number of them back on the top of your library in any order, and the rest on the bottom of your library. If all five of those cards are basic lands, you may instead reveal them, then put them back on top of your library. If you do, you gain 100 life. Exile Talara, Fate Seer."