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Collective Nightmare

Card details, tags, similarity scores, and printings.

Collective Nightmare

Instant

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.) Target creature gets -3/-3 until end of turn.

$0.15

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

Passive Static

Mana costs

× 1

Color identity

B

Keyword tags

Convoke

Mana value

Mana value 3

Timing tags

Timing Instant

Type tags

Instant

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These rankings describe text and metadata resemblance, not synergy, win rates, or claims that a card counters yours.

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Score 0.550unitless formula ranking

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Shared traits: No shared tags

Score details
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Color identity
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Score 0.550unitless formula ranking

Enchantment — Aura · Mana cost: · Color identity: W

Shared traits: Passive Static

Score details
Text (embedding)
0.842
Tags and themes
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Color identity
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Mana cost
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Shared tags

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Score 0.550unitless formula ranking

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Shared traits: No shared tags

Score details
Text (embedding)
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Score 0.550unitless formula ranking

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Shared traits: No shared tags

Score details
Text (embedding)
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Tags and themes
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Color identity
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Mana cost
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No shared tags contributed to this comparison.

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Score 0.550unitless formula ranking

Creature — Dinosaur · Mana cost: · Color identity: G

Shared traits: Passive Static

Score details
Text (embedding)
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Mana cost
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Score 0.550unitless formula ranking

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Shared traits: No shared tags

Score details
Text (embedding)
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Score 0.550unitless formula ranking

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Shared traits: No shared tags

Score details
Text (embedding)
0.806
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Color identity
0.000
Mana cost
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Score 0.550unitless formula ranking

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Shared traits: No shared tags

Score details
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Color identity
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Score details
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Score 0.550unitless formula ranking

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Shared traits: No shared tags

Score details
Text (embedding)
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Score 0.550unitless formula ranking

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Shared traits: Passive Static

Score details
Text (embedding)
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Score 0.550unitless formula ranking

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Score details
Text (embedding)
0.875
Tags and themes
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Mana cost
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Score 0.550unitless formula ranking

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Score details
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Color identity
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Mana cost
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Score 0.550unitless formula ranking

Sorcery · Mana cost: · Color identity: G

Shared traits: Passive Static

Score details
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Score 0.550unitless formula ranking

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Score details
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Score 0.550unitless formula ranking

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Shared traits: No shared tags

Score details
Text (embedding)
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Color identity
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Mana cost
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Score 0.550unitless formula ranking

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Score details
Text (embedding)
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Tags and themes
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Color identity
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Mana cost
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Score 0.550unitless formula ranking

Creature — Dragon // Sorcery — Omen · Mana cost: // · Color identity: G

Shared traits: Passive Static

Score details
Text (embedding)
0.838
Tags and themes
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Color identity
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Mana cost
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Shared tags

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Score 0.550unitless formula ranking

Artifact · Mana cost: · Color identity: Colorless

Shared traits: No shared tags

Score details
Text (embedding)
0.834
Tags and themes
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Color identity
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Mana cost
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No shared tags contributed to this comparison.

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Score 0.550unitless formula ranking

Enchantment Creature — Nymph · Mana cost: · Color identity: W

Shared traits: Passive Static

Score details
Text (embedding)
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Tags and themes
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Score 0.550unitless formula ranking

Sorcery · Mana cost: · Color identity: G

Shared traits: No shared tags

Score details
Text (embedding)
0.834
Tags and themes
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Color identity
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Mana cost
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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 (0.550); 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
March of the Machineen952023-04-21uncommon$0.15
March of the Machineit952023-04-21uncommon—
March of the Machinede952023-04-21uncommon—
March of the Machinezhs952023-04-21uncommon—
March of the Machinees952023-04-21uncommon—
March of the Machineja952023-04-21uncommon—
March of the Machinefr952023-04-21uncommon—
March of the Machinept952023-04-21uncommon—