Stonebound Mentor

• 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 Coast2021-04-16
  Official Ruling
  If multiple cards leave your graveyard as part of the same event, Stonebound Mentor’s ability will trigger only once.

Rulings via Scryfall