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Magic: The Gathering Comprehensive Rules Changes

Masters Edition to Lorwyn (Single Change View)

General changes

Old rule (Masters Edition) New rule (Lorwyn)

Search

If you're required to search a zone not revealed to all players for cards of a given quality, such as type or color, you aren't required to find some or all of those cards even if they're present; however, if you do choose to find cards, you must reveal those cards to all players. Even if you don't find any cards, you are still considered to have searched the zone. If you're simply searching for a quantity of cards, such as "a card" or "three cards," you must find that many cards (or as many as possible). These cards often aren't revealed.

Example: If an effect causes you to search a player's library for all duplicates of a particular card and remove them from the game, you may choose to leave some of them alone, but if an effect causes you to search your library for three cards and it contains at least three, you can't choose less than three.

Search

If you're required to search a zone not revealed to all players for cards of a given quality, such as card type or color, you aren't required to find some or all of those cards even if they're present; however, if you do choose to find cards, you must reveal those cards to all players. Even if you don't find any cards, you are still considered to have searched the zone. If you're simply searching for a quantity of cards, such as "a card" or "three cards," you must find that many cards (or as many as possible). These cards often aren't revealed.

Example: If an effect causes you to search a player's library for all duplicates of a particular card and remove them from the game, you may choose to leave some of them alone, but if an effect causes you to search your library for three cards and it contains at least three, you can't choose less than three.