Vanaheim, Vanir's Realm

When Vanaheim, Vanir's Realm enters the battlefield, you may search your library for an
Instant or Sorcery card. Shuffle. You may put
the card on top of your library.
At the beginning of your upkeep, look at the top
two cards of your library, then put any number
of them into your graveyard and the rest on top
of your library in any order.