Eme Town, The forgotten realm

When Eme Town, The Forgotten Realm enters the battlefield, you may pay 2 life. If you do, search your library for a land card, and put it on the battlefield tapped.
{t}{1}: Add {x}. Where X is the number of creatures you control.
{t}{3}: Sacrifice Eme Town, The Forgotten Realm. : Make a copy of each creature on the battlefield and Gain 10 life.