Exchange of the Spirit (RP01-EN099) [Retro Pack (2020 Date Reprint)]

Activate only by paying 1000 Life Points while there are 15 or more cards in your Graveyard. Both players swap the card(s) in their Graveyard with the card(s) in their Deck. Then, shuffle the card(s) in each new Deck and put it on the Deck Zone.