Anxior's dirty trick

If you have Anxior's dirty trick in your
opening hand, you may cast this spell
without paying its mana cost. Look at each of
your opponent's library, hand and
graveyard, you may choose any number of
nonland cards, exil them. You lose life equals
to the number of cards exiled this way.
Where is my dog?! Opponent is the real dog!
—Anxior Lee