Dredgetown Center

Hideaway (This land enters the battlefield tapped.
When it does, look at the top four cards of your library,
exile one face down, then put the rest o
n the bottom of your library.)
{t}: add {b} or {g} to your mana pool.
{b/g}, {t}: you may play the removed card without
paying its mana cost if all players
have no cards in hand.