Hijirime Laeria

When Hijirime Laeria enters the battlefield, pick
a number. Target player chooses one of the
following: Exile all cards from your library with
converted mana cost greater than the chosen
number until Hijirime Laeria leaves the
battlefield, or exile all cards from your library
with converted mana cost less than the chosen
number until Hijirime Laeria leaves the
battlefield.(Cards with no mana cost are not affected
by this ability.)