Fateful End

• WOTC Official Reminder Textofficial rules
  Scry — Look at the top N cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.

• WWizards of the Coast2020-01-24
  Official Ruling
  If the chosen target is an illegal target by the time Fateful End tries to resolve, the spell won’t resolve. You won’t scry 1.

Rulings via Scryfall