Nissa, Worldwaker: Magic 2015

[+1]: Target land you control becomes a 4/4 Elemental creature with trample. It's still a land. [+1]: Untap up to four target Forests. [−7]: Search your library for any number of basic land cards, put them onto the battlefield, then shuffle. Those lands become 4/4 Elemental creatures with trample. They're still lands.