Duplicity

Card Name

Duplicity

Mana Cost

3

Type

Enchantment

Rarity

Rare

rules Text

When Duplicity comes into play, put the top five cards of your library face down on Duplicity.During your upkeep, you may exchange all the cards in your hand for the cards on Duplicity.At the end of your turn, choose and discard a card.If you lose control of Duplicity, put all cards on it into owner's graveyard.

Legal Formats

Commander, Legacy, Vintage

Not Legal Formats

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

Rulings

(10/4/2004)
The cards are face down all the time. You can't look at them. This applies even to cards from your hand that got swapped out. You have to remember what they were if you care.
(4/1/2008)
For a time the last ability triggered when Duplicity left the battlefield. It has been restored to triggering when you lose control of Duplicity.
(4/1/2008)
Taking control of another player's Duplicity will trigger the ability that causes the cards they exiled to be put into their owner's graveyard.