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The Ooze
Legendary Artifact
rare
Whenever a creature you control with a +1/+1 counter on it leaves the battlefield, create a Mutagen token for each +1/+1 counter on it. (A Mutagen token is an artifact with ", , Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery.") : Exile target card from a graveyard. Create a Mutagen token.
Card Kingdom
CardmarketSemantic Tags
Cares about +1/+1 counters — places, moves, doubles, or benefits from counters on creatures.
Exiles cards from graveyards or prevents graveyard interaction. Shuts down recursion, flashback, and graveyard-matters strategies.
Cares about cards in the graveyard, puts cards into the graveyard, or benefits from things dying.
A permanent with a repeatable activated ability that converts excess mana into value.
A keyword that lets a creature card be cast as a mutating creature spell. See rule 702.140, “Mutate.”
A card or token on the battlefield. See rule 110, “Permanents.”
Proliferate-focused strategy — adds counters of all types.
Creates creature tokens, Treasure tokens, Food tokens, Clue tokens, or other token types.
Cares about tokens being on the battlefield — payoffs for having or creating tokens. Distinct from token_generation (which creates them).
Format Legality
Price history
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Printings (2)
| Set | Rarity | TCGplayer | Card Kingdom | Cardmarket |
|---|---|---|---|---|
| Teenage Mutant Ninja Turtles#177 | rare | · | · | · |
| Teenage Mutant Ninja Turtles#277 | rare | · | · | · |
Related Rules
If an ability would produce one or more mana of an undefined type, it produces no mana instead.
Some abilities produce mana based on the type of mana another permanent or permanents “could produce.” The type of mana a permanent could produce at any time includes any type of mana that an ability of that permanent would produce if the ability were to resolve at that time, taking into account any applicable replacement effects in any possible order. Ignore whether any costs of the ability could or could not be paid. If that permanent wouldn’t produce any mana under these conditions, or no type of mana can be defined this way, there’s no type of mana it could produce.
To “tap [a permanent] for mana” is to activate a mana ability of that permanent that includes the {T} symbol in its activation cost. See rule 605, “Mana Abilities.”
An ability that triggers whenever a permanent “is tapped for mana” or is tapped for mana of a specified type triggers whenever such a mana ability resolves and produces mana or the specified type of mana.
A replacement effect that applies if a permanent “is tapped for mana” or tapped for mana of a specific type and/or amount modifies the mana production event while such an ability is resolving and producing mana or the specified type and/or amount of mana.
If an object’s enters-the-battlefield triggered ability or replacement effect refers to X, and the spell that became that object as it resolved had a value of X chosen for any of its costs, the value of X for that ability is the same as the value of X for that spell, although the value of X for that permanent is 0. This is an exception to rule 107.3i.
The tap symbol is {T}. The tap symbol in an activation cost means “Tap this permanent.” A permanent that’s already tapped can’t be tapped again to pay the cost. A creature’s activated ability with the tap symbol in its activation cost can’t be activated unless the creature has been under its controller’s control continuously since their most recent turn began. See rule 302.6.
The untap symbol is {Q}. The untap symbol in an activation cost means “Untap this permanent.” A permanent that’s already untapped can’t be untapped again to pay the cost. A creature’s activated ability with the untap symbol in its activation cost can’t be activated unless the creature has been under its controller’s control continuously since their most recent turn began. See rule 302.6.
Rulings
Some spells and abilities that create Mutagen tokens require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. The Mutagen token won't be created.
Mutagen tokens are a kind of predefined token. Each one is a colorless artifact with the artifact subtype Mutagen and the ability "{1}, {T}, Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery."
If enough -1/-1 counters are put on a creature you control at the same time to make its toughness 0 or less (or the damage marked on it to be lethal), the number of +1/+1 counters on it before it got any -1/-1 counters will be used to determine how many Mutagen tokens you get. For example, if there are three +1/+1 counters on a creature and it gets four -1/-1 counters, you'll get three Mutagen tokens. That's because The Ooze's triggered ability checks the creature's existence just before it leaves the battlefield, and it still has all those counters on it at that point.