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Null Chamber

Card Name

Null Chamber

Mana Cost

3

Type

World Enchantment

Rarity

Rare

rules Text

You and target opponent each name any card except a basic land. Those cards cannot be played.

Flavor Text

Discovered by Femeref mages, the Null Chamber is the ultimate testing ground for the uncreative.

Legal Formats

Commander, Legacy, Vintage

Not Legal Formats

Alchemy, Brawl, Explorer, Historic, Modern, Pauper, Pioneer, Standard

Rulings

(2/1/2006)
If you somehow manage to cast this while other spells are on the stack, those spells won't be countered.
(10/1/2008)
This has the supertype world. When a world permanent enters, any world permanents that were already on the battlefield are put into their owners' graveyards. This is a state-based action called the "world rule." The new world permanent stays on the battlefield. If two world permanents enter at the same time, they're both put into their owners' graveyards.
(4/15/2013)
You choose which opponent makes the choice. Null Chamber does not target that opponent.