Resources

Magic: The Gathering Comprehensive Rules Changes

Planar Chaos to Future Sight (Single Change View)

General changes

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

502.2c.

Adding or removing first strike after the first combat damage step won't prevent a creature from dealing combat damage or allow it to deal combat damage twice.

502.2c.

Adding or removing first strike any time after combat damage has been put on the stack in the first combat damage step won't prevent a creature from dealing combat damage or allow it to deal combat damage twice.