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Magic: The Gathering Comprehensive Rules Changes

Guildpact to Dissension (Single Change View)

General changes

Old rule (Guildpact) New rule (Dissension)

Unblocked

A creature is unblocked if it's attacking and no creature blocked it during the declare blockers step of the current combat phase. It remains an unblocked creature until an effect causes it to become blocked, it's removed from combat, it stops being a creature, its controller changes, or the combat phase ends. Unblocked creatures don't exist outside of the combat phase or before the declare blockers step. See rule 309, "Declare Blockers Step."