Cards owned by your opponents still go to the appropriate graveyard.
Graveyard Busybody
If an effect asks how many cards are in your graveyard, use the total number of cards in all your graveyards. However, they are still separate graveyards. If an effect affects a single graveyard, such as shuffling it into its owner’s library, only that one graveyard is shuffled in.
Speaking of that, cards in graveyards are shuffled into their owners’ libraries. You won’t put any cards from graveyards you stole, er . . . borrowed into your library.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Bram Sels
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
