Desperate Searching

(If you would lose the game, instead you may reveal
this card from your hand. It resolves.)
Reveal the top seven cards of your library. You
may cast one of them without paying its mana
cost. If Desperate Searching resolved from your
hand, instead reveal the top twenty cards of your library. Choose to two of them. Those cards
resolve. Then, shuffle all cards revealed by
Desperate Searching that were not cast into your library.