Bear Cave

Bear Cave comes into play tapped.
Storage 5 (When Bear Cave enters the battlefield,
look at the top five cards of your library., exile one
face down, then put the rest on the bottom of your
library.)
{t}: Add {b}.
{t}: You may play the exiled card without paying
its mana cost as if it had flash if you have lost 5
or more life this turn.
{t}: Add {g}. Use this only if its Storage is empty.