Desynchronize — ruling 1

The permanent's owner chooses whether to put it on the top or bottom of their library. If multiple cards are put into the library this way (such as when the spell targets a melded permanent), that permanent's owner puts all the cards on top or all the cards on the bottom. They put them in whatever order they wish, and do not need to reveal the order.

Desynchronize : règles, fonctionnement et interactions (MTG)

Desynchronize is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Target nonland permanent's owner puts it on their choice of the top or bottom of their library. Scry 2.

How it works : Desynchronize

Original English text — Wizards of the Coast / Scryfall

#1October 14, 2022· Wizards of the Coast
The permanent's owner chooses whether to put it on the top or bottom of their library. If multiple cards are put into the library this way (such as when the spell targets a melded permanent), that permanent's owner puts all the cards on top or all the cards on the bottom. They put them in whatever order they wish, and do not need to reveal the order.
No other card is named in this ruling.