Nalia, The Dream Wanderer

You may look at the top of your library at any time.

Each creature card at the top of your library without foretell has foretell. Its foretell cost is equal
to its mana cost reduced by {1}. (During your turn, you may pay {2} and exile a card with foretell from your hand face down. You may cast it on a later turn for its foretell cost)

Whenever you cast a spell from anywhere other than your hand, create a Treasure token.