Ila, Mother of Mercy

When Ila, Mother of Mercy enters the battlefield
under your control, put all but the bottom X
cards from your library into your graveyard.
Haste, flying, vigilance, indestructible
Whenever Ila, Mother of Mercy attacks or blocks,
you may put the top card of your library onto the
battlefield. If you do, search your graveyard for a
non-artifact, nonland card and put it into your
hand. Each player other than you loses life equal
to that card's converted mana cost.