Resources

Magic: The Gathering Comprehensive Rules Changes

Future Sight to Core Set - Tenth Edition (Single Change View)

General changes

Old rule (Future Sight) New rule (Core Set - Tenth Edition)

506.6.

At the end of a subgame, each player puts all objects he or she owns that were brought into the subgame into his or her library in the main game, then shuffles that library. Cards removed from the game in the subgame are not put into the player's main-game library. Instead they remain removed from the game in the main game.

Example: If a card was brought into the subgame either from the main game or from outside the main game, that card will be put into its owner's main-game library when the subgame ends.

506.5.

At the end of a subgame, each player puts all cards he or she owns that are in the subgame into his or her library in the main game, then shuffles them. This includes cards in the subgame's removed-from-the-game zone. (This is a change from previous rules.) All other objects in the subgame cease to exist, as do the zones created for the subgame. The main game continues from the point at which it was discontinued: First, the spell or ability that created the subgame finishes resolving, even if it was created by a spell card that's no longer on the stack. Then, if any main-game abilities triggered while the subgame was in progress due to cards being removed from the main game, those abilities are put onto the stack.

Example: If a card was brought into the subgame either from the main game or from outside the main game, that card will be put into its owner's main-game library when the subgame ends.