Mwonvuli Ooze
Mana cost
Mana value1TypeCreature — Ooze
Color identity Green
RarityRare
SetWeatherlight (WTH)
ArtistZina Saunders
Price€0.80 · $0.84
Mana value1TypeCreature — Ooze
Color identity Green
RarityRare
SetWeatherlight (WTH)
ArtistZina Saunders
Price€0.80 · $0.84Mwonvuli Ooze
Creature — Ooze
Cumulative upkeep 
(At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay 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.
(At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay 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.
"Ewww!"
1+*/1+*
Legality
CommanderLegalStandardNot legalPioneerNot legalModernNot legalLegacyLegalVintageLegalPauperNot legalBrawlNot legalOathbreakerLegalHistoricNot legalTimelessNot legalPenny DreadfulNot legal
Rulings
2008-04-01
If you choose not to pay Mwonvuli Ooze’s cumulative upkeep, it will still get an age counter before being sacrificed. Its power and toughness will momentarily increase before being put into the graveyard, which might matter to certain other cards (such as Proper Burial).
2004-10-04
Its power/toughness changes when the cumulative upkeep resolves, not when it triggers.