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Magic: The Gathering Comprehensive Rules Changes

Core Set - Tenth Edition to Masters Edition (Single Change View)

General changes

Old rule (Core Set - Tenth Edition) New rule (Masters Edition)

Cumulative Upkeep

Cumulative upkeep is a triggered ability that imposes an increasing cost on a permanent. "Cumulative upkeep [cost]" means "At the beginning of your upkeep, put an age counter on this permanent, then sacrifice this permanent unless you pay [cost] for each age counter on it." If [cost] has choices associated with it, each choice is made separately for each age counter, then either the entire set of costs is paid, or none of them are paid. Partial payments aren't allowed. Note that if a permanent has more than one instance of cumulative upkeep, each creates a separate triggered ability at the beginning of upkeep that counts all the age counters on the permanent from all abilities. See rule 502.13, "Cumulative Upkeep."

Cumulative Upkeep

Cumulative upkeep is a triggered ability that imposes an increasing cost on a permanent. "Cumulative upkeep [cost]" means "At the beginning of your upkeep, put an age counter on this permanent. Then you may pay [cost] for each age counter on it. If you don't, sacrifice it." If [cost] has choices associated with it, each choice is made separately for each age counter, then either the entire set of costs is paid, or none of them are paid. Partial payments aren't allowed. Note that if a permanent has more than one instance of cumulative upkeep, each creates a separate triggered ability at the beginning of upkeep that counts all the age counters on the permanent from all abilities. See rule 502.13, "Cumulative Upkeep."