Omnath, Locus of Zendikar

When Omnath, Locus of Zendikar enters the battlefield, search your library for a land card, reveal it, and put it into your hand. Then shuffle your library.
Landfall- Whenever a land enters the battlefield under your control, target land you control becomes a 0/0 Elemental creature that has "This creature gets +1/+1 for each land you control." It's still a land.