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Magic: The Gathering Comprehensive Rules Changes

Planar Chaos to Future Sight (Single Change View)

General changes

Old rule (Planar Chaos) New rule (Future Sight)

Damage

Damage can be dealt to creatures and/or players. Damage dealt to a player is subtracted from his or her life total. Damage dealt to a creature stays on the permanent until end of turn, even if it stops being a creature. A creature with damage greater than or equal to its toughness has been dealt lethal damage and is destroyed. (See rule 420, "State-Based Effects.") Damage doesn't alter a creature's toughness. A noncreature permanent isn't affected by damage (but if it becomes a creature again before the damage is removed, the creature may be destroyed). During the cleanup step, all damage is removed from permanents. Costs and effects that read "lose life" or "pay life" don't deal damage, and that loss of life can't be prevented or otherwise altered by effects that prevent or replace damage.

Damage

Damage can be dealt to creatures and/or players. Damage dealt to a player causes that player to lose that much life. Damage dealt to a creature stays on the permanent until end of turn, even if it stops being a creature. A creature with damage greater than or equal to its toughness has been dealt lethal damage and is destroyed. (See rule 420, "State-Based Effects.") Damage doesn't alter a creature's toughness. A noncreature permanent isn't affected by damage (but if it becomes a creature again before the damage is removed, the creature may be destroyed). During the cleanup step, all damage is removed from permanents. Costs and effects that read "lose life" or "pay life" don't deal damage, and that loss of life can't be prevented or otherwise altered by effects that prevent or replace damage.