Apocalyptic Wasteland

Apocalyptic Wasteland enters the battlefield tapped unless you have two swamps or two humans on the battlefield
{t}: add {2} to your mana pool, if you control five or more humans add {4} instead
{2}{t}: place a 2/2 human with survivor 1 onto the battlefield (this creature gets +1/+1 for each Wasteland land you control)