Laelia, the Blade Reforged (MH3-482) - Modern Horizons 3 Etched Foil

Haste
Whenever Laelia, the Blade Reforged attacks, exile the top card of your library. You may play that card this turn.
Whenever one or more cards are put into exile from your library and/or your graveyard, put a +1/+1 counter on Laelia.