Lost Chapters

If you would discard one or more cards, exile that
many cards from your hand face down instead.
You may look at cards exiled with Lost Chapters.
At the beginning of your end step, if you've
exiled a card from your hand with Lost Chapters
this turn, you may pay {2}. If you do, return up
to one card exiled with Lost Chapters to your
hand. Otherwise, shuffle all cards exiled with
Lost Chapters into your library, then scry 2.