Sphinx Ambassador | Magic: The Gathering
Formats Sphinx Ambassador is Legal in
Official Oracle Text for Sphinx Ambassador
Whenever Sphinx Ambassador deals combat damage to a player, search that player's library for a card, then that player names a card. If you searched for a creature card that isn't the named card, you may put it onto the battlefield under your control. Then that player shuffles his or her library.
Official Rulings for Sphinx Ambassador
10/1/2009 : Once you've chosen a card during your search, you must clearly indicate which card you've chosen (preferably without showing the front of that card to the player!). Then the player names a card.
10/1/2009 : After the player names a card, check if the card you chose has that name. If it doesn't, but it's a creature card, you may put it onto the battlefield. If you don't want to put that card onto the battlefield, it's not a creature card, or it does have the name the player said, it simply stays in that player's library without ever being revealed. The player then shuffles his or her library, including that card.
10/1/2009 : A "creature card" is any card with the type Creature, even if it has other types such as Artifact, Enchantment, or Land. Older cards of type Summon are also Creature cards.