Szadek's Tomb

(Transforms from Szadek, Dimir Shadowfiend.)
{t}: Add {u} or {b} to your mana pool
{2}{u/b}, {t}: Look at the top four cards of your
library. You may reveal a noncreature, nonland
card from among them and put it into your
hand. Put the rest on the bottom of your library
in any order.