Desert Of The Doomed

Desert Of the Doomed enters the battlefield tapped.
When Desert Of The Doomed enters the battlefield, each player loses 1 life and you create 2 0/1 white and black sand horrors with "{t}: create a 2/1 white and black sand horror with haste.
{t}/ pay 1 life: add {c}
{t}, each player loses 1 life: add {w} or {b}
{3}{w}{b}: this land becomes a 5/2 black and white horror with heroic and "{0}: swich this creatures power and toughness until end of turn."