Eyes of the Lich Lord

When this card enters the field, create a 2/2
black zombie with deathtouch
{b}{b} Once per turn, look at the top two cards of
an opponents library. Whenever each of
those cards are played, create a 2/2 black zombie
with deathtouch and decay
As I crossed the mountains, I could feel the
gaze of the dreadful lich lord and death always
followed close behind.