Mosswort Bridge

Hideaway 4(When this land enters,
look at the top four cards of your library,
exile one face down, then put the rest on the bottom in a random order
Mosswort Bridge enters the battlefield tapped.
{t} : Add {g}.
{g}, {t}: You may play the
exiled card without paying its mana cost
if creatures you control have total power 10 or greater.