
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.
Magmatic Core has 1 printing, first in Coldsnap (2006). EDHREC ranks it #30,341 among Commander cards. It has 4 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.