Magic: The Gathering Comprehensive Rules Changes - Core Set - Ninth Edition to Ravnica: City of Guilds

Old rule (Core Set - Ninth Edition)	New rule (Ravnica: City of Guilds)
Deck [Click to view all changes.]
Deck A player's deck is the collection of cards that player starts the game with. When the game begins, each player's deck becomes his or her library.	Deck A player's deck is the collection of cards that player starts the game with. When the game begins, each player's deck becomes his or her library. See section 100, "General," and section 101, "Starting the Game."

Old rule (Core Set - Ninth Edition)

New rule (Ravnica: City of Guilds)

Deck

A player's deck is the collection of cards that player starts the game with. When the game begins, each player's deck becomes his or her library.

Deck

A player's deck is the collection of cards that player starts the game with. When the game begins, each player's deck becomes his or her library. See section 100, "General," and section 101, "Starting the Game."