Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay {2} for each age counter on it.)
Mwonvuli Ooze's power and toughness are each equal to 1 plus twice the number of age counters on it.
Mwonvuli Ooze has 1 listed printing; the most valuable is the printing from WTH at US$0.82 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
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