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Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) At the beginning of your end step, this enchantment deals X damage divided as you choose among any number of target creatures, where X is the number of age counters on it.
Abilities, attacks, weakness & resistance
Other cards from Coldsnap
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Magmatic Core (CSP-91) is a red enchantment from Coldsnap that uses cumulative upkeep to grow over time. At each end step it deals damage equal to its age counters divided among any number of target creatures, with each target required to take at least one damage when targets are chosen. This card functions as a scalable repeatable damage source that pressures opposing creatures and can force recurring upkeep decisions.
Catalog pricing data as of 18 Apr 2026, 01:50
