Magic: The Gathering Comprehensive Rules Changes - Future Sight to Core Set - Tenth Edition

Old rule (Future Sight)	New rule (Core Set - Tenth Edition)
308.4. [Click to view all changes.]
308.4. If no creatures are declared as attackers, finish the declare attackers step, but skip the declare blockers and combat damage steps.	308.4. If no creatures are declared as attackers, skip the declare blockers and combat damage steps.

Old rule (Future Sight)

New rule (Core Set - Tenth Edition)

308.4.

If no creatures are declared as attackers, finish the declare attackers step, but skip the declare blockers and combat damage steps.

308.4.

If no creatures are declared as attackers, skip the declare blockers and combat damage steps.