Dredge the Mire — ruling 1

As Dredge the Mire resolves, first the next opponent in turn order (or, if it’s an opponent’s turn, the opponent whose turn it is) chooses a creature card in their graveyard, then each other opponent in turn order does the same knowing the choices made before them. Then all the chosen cards are returned at the same time.

Dredge the Mire — ruling 2

In a multiplayer game, if a player leaves the game, all cards that player owns leave as well. If you leave the game, any permanents you control from Dredge the Mire are exiled.

Dredge the Mire : règles, fonctionnement et interactions (MTG)

Dredge the Mire 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

Each opponent chooses a creature card in their graveyard. Put those cards onto the battlefield under your control.

How it works : Dredge the Mire

Original English text — Wizards of the Coast / Scryfall

#1April 17, 2020· Wizards of the Coast
As Dredge the Mire resolves, first the next opponent in turn order (or, if it’s an opponent’s turn, the opponent whose turn it is) chooses a creature card in their graveyard, then each other opponent in turn order does the same knowing the choices made before them. Then all the chosen cards are returned at the same time.
No other card is named in this ruling.
#2April 17, 2020· Wizards of the Coast
In a multiplayer game, if a player leaves the game, all cards that player owns leave as well. If you leave the game, any permanents you control from Dredge the Mire are exiled.
No other card is named in this ruling.