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Magic: The Gathering Comprehensive Rules Changes

Coldsnap to Time Spiral (Single Change View)

General changes

Old rule (Coldsnap) New rule (Time Spiral)

309.2f.

An attacking creature with one or more creatures declared as blockers for it becomes a blocked creature; one with no blockers becomes an unblocked creature. The creature's state remains unchanged until the creature is removed from combat or the combat phase ends, whichever comes first. (Some effects can change a creature's state.)

309.2f.

An attacking creature with one or more creatures declared as blockers for it becomes a blocked creature; one with no blockers becomes an unblocked creature. This remains unchanged until the creature is removed from combat or the combat phase ends, whichever comes first. (Some effects can change whether a creature is blocked or unblocked.)