Azusa, Witch of Nightmares

Nonbasic-landwalk, Double Strike, Menace.
Azusa cannot be countered.
As you cast Azusa, you may pay x and exile x
cards from the top of each players library, for
each card exiled this way, make an x/x
skeleton creature token with "whenever this
creature deals damage to a player, draw a
card." where x is equal to the amount of cards
in exile for each player.