Freddy's Boiler Room

Hideaway 6 (When this land enters the battlefield,
look at the top six cards of your library, exile one face
down, then put the rest on the bottom in a random
order.)
Freddy's Boiler Room enters the battlefield
tapped.
{t}: Add {b} or {r}
{b}{t}: You may play the removed card without
paying its mana cost if 4 or more creatures have
died this turn.