Thieves' Auction

Exile all nontoken permanents. Starting with you, each player chooses one of the exiled cards and puts it onto the battlefield tapped under their control. Repeat this process until all cards exiled this way have been chosen.

The List

Eighth Edition

Set aside all cards in play. Starting with you, each player chooses one of the cards set aside and puts it into play tapped under his or her control. Repeat this process until all those cards have been chosen.

Mercadian Masques

Set aside all permanents. You choose one of those cards and put it into play tapped under your control. Then your opponent chooses one and puts it into play tapped under his or her control. Repeat this process until all cards set aside this way have been chosen. (Local enchantments with no permanent to enchant remain removed from the game.)

An Aura put onto the battlefield this way does not target the permanent it is placed upon.

In multi-player games, it affects all players and players make choices in turn order.

Triggers from the permanents leaving the battlefield and then being put back onto the battlefield are not put on the stack until the entire effect is done.

You can’t pick a card that can’t legally be returned to the battlefield. If there are no cards that can be legally returned, then you can’t pick one.

If you choose an Aura, you can put it on any permanent it can legally enchant. If there is nothing it can legally enchant, it remains exiled, and it can still be chosen by you or another player later in the auction. If there comes a point where only Auras and no legal permanents left, they stay exiled permanently.