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Cavern Whisperer

Card details, tags, similarity scores, and printings.

Cavern Whisperer

Creature — Nightmare

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.) Menace (This creature can't be blocked except by two or more creatures.) Whenever this creature mutates, each opponent discards a card.

$0.26

Commander: LegalModern: Legal

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Tags and classifications

Card attributes are distinct from inferred themes. AI themes and predicted tags are suggestions, not rules text; check the card before relying on a surprising classification.

Ability tags

Triggered

Mana costs

× 1

Creature kinds

Nightmare

Color identity

B

Keyword tags

MenaceMutate

Mana value

Mana value 5

Theme tags

Discard

Timing tags

Timing Sorcery

Type tags

Creature

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Shared traits: Creature, Nightmare, Mutate · Same color identity

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Shared traits: Creature, Nightmare, Timing Sorcery · Same color identity · Matching mana cost

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Mana cost
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CreatureNightmareTiming SorceryTriggered

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Shared traits: Creature, Discard, Timing Sorcery · Same color identity · Matching mana cost

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CreatureDiscardTiming SorceryTriggered

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CreatureNightmareTiming SorceryTriggered

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CreatureMenaceTiming SorceryTriggered

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Score 0.803unitless formula ranking

Creature — Elemental · Mana cost: · Color identity: B

Shared traits: Creature, Menace, Timing Sorcery · Same color identity · Matching mana cost

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CreatureMenaceTiming SorceryTriggered

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How ranking works

Balanced: 0.60*text + 0.20*tags + 0.10*color + 0.10*cost. Outputs are unitless rankings, not percentages or probabilities. Most similar shows the highest scores; Typical overlap is nearest the catalog median (0.575); Least similar shows the lowest scores.

Text uses cosine resemblance (−1 to 1) between 384-number embeddings when available, or lexical fallback otherwise. Tags use Jaccard overlap of approved tags and AI themes, excluding predicted tags and separately scored color/cost tags. Color compares W/U/B/R/G identity. Mana cost combines mana-value proximity, 1 / (1 + the difference), with mana-symbol overlap. Tags, color, and cost range from 0 to 1.

Model: bge-small-en-v1.5. 34,605 of 34,605 catalog cards currently have embeddings.

Potential relationships

1,031 of 34,605 canonical cards have AI-derived resource labels. Label model: gpt-5.6-luna.

This card is missing AI-derived resource labels, so potential synergies and answers are unavailable. No text or predicted-tag inference is used.

About relationship labels

These labels are AI-derived resource matches, not reviewed or rules-validated interactions. Check deck legality, color identity, costs, timing, restrictions, and the cards themselves.

Printings
SetLanguageCollectorReleasedRarityPrice
Magic Online Promosen809772020-04-30common—
Ikoria: Lair of Behemothsfr792020-04-24common—
Ikoria: Lair of Behemothszhs792020-04-24common—
Ikoria: Lair of Behemothsen792020-04-24common$0.26
Ikoria: Lair of Behemothses792020-04-24common—
Ikoria: Lair of Behemothsko792020-04-24common—
Ikoria: Lair of Behemothsja792020-04-24common—
Ikoria: Lair of Behemothsit792020-04-24common—
Ikoria: Lair of Behemothszht792020-04-24common—
Ikoria: Lair of Behemothsru792020-04-24common—
Ikoria: Lair of Behemothspt792020-04-24common—
Ikoria: Lair of Behemothsde792020-04-24common—
Ikoria: Lair of Behemothsen2872020-04-24common$0.17