Nissa, the Gentle Shade

: You may look at the top card of your library at any time. You may play land cards from your graveyard and from the top of your library.
+2: Mill cards equal to the number of lands you control, then return a creature card milled this way to your hand.
-8: Untap all lands you control. Until end of turn, lands you control are 4/4 land creatures with flying, menace, haste, and indestructible.