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Contagion Engine

Card details, tags, similarity scores, and printings.

Contagion Engine

Artifact

When this artifact enters, put a -1/-1 counter on each creature target player controls. , : Proliferate twice. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)

$13.74

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

ActivatedTriggered

Mana costs

Colorless cost

Keyword tags

Proliferate

Mana value

Mana value 6+

Timing tags

Timing Sorcery

Type tags

Artifact

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ActivatedArtifactTiming SorceryTriggered

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Score 0.805unitless formula ranking

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Shared traits: Activated, Artifact, Timing Sorcery · Same color identity

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0.891
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0.800
Color identity
1.000
Mana cost
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Shared tags

ActivatedArtifactTiming SorceryTriggered

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Score 0.804unitless formula ranking

Artifact · Mana cost: · Color identity: Colorless

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

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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Shared tags

ArtifactTiming Sorcery

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Score 0.803unitless formula ranking

Artifact · Mana cost: · Color identity: Colorless

Shared traits: Activated, Artifact, Timing Sorcery · Same color identity

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Tags and themes
0.667
Color identity
1.000
Mana cost
0.250

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ActivatedArtifactTiming SorceryTriggered

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Score 0.802unitless formula ranking

Artifact Creature — Construct · Mana cost: · Color identity: Colorless

Shared traits: Activated, Artifact, Timing Sorcery · Same color identity · Matching mana cost

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Mana cost
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Shared tags

ActivatedArtifactTiming Sorcery

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Score 0.802unitless formula ranking

Artifact · Mana cost: · Color identity: Colorless

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ActivatedArtifactTiming SorceryTriggered

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Score 0.802unitless formula ranking

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Shared traits: Artifact, Timing Sorcery, Triggered · Same color identity · Matching mana cost

Score details
Text (embedding)
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Mana cost
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ArtifactTiming SorceryTriggered

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Score details
Text (embedding)
0.857
Tags and themes
0.800
Color identity
1.000
Mana cost
0.250

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ActivatedArtifactTiming SorceryTriggered

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Score 0.799unitless formula ranking

Creature — Avatar · Mana cost: · Color identity: Colorless

Shared traits: Activated, Timing Sorcery, Triggered · Same color identity · Matching mana cost

Score details
Text (embedding)
0.873
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Mana cost
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Score 0.799unitless formula ranking

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Tags and themes
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Mana cost
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Score 0.798unitless formula ranking

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0.886
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1.000
Mana cost
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Score 0.797unitless formula ranking

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Shared traits: Artifact, Timing Sorcery, Triggered · Same color identity · Matching mana cost

Score details
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0.884
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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 (0.572); 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
Breaking Newsde612024-04-19mythic—
Breaking Newsfr612024-04-19mythic—
Breaking Newszhs612024-04-19mythic—
Breaking Newspt612024-04-19mythic—
Breaking Newses612024-04-19mythic—
Breaking Newsit612024-04-19mythic—
Breaking Newsja612024-04-19mythic—
Breaking Newsen782024-04-19mythic—
Breaking Newsen612024-04-19mythic$12.68
Secret Lair Dropen10952022-11-02rare$17.20
The ListenSOM-1452020-09-01rare$14.47
Scars of Mirrodinru1452010-10-01rare—
Scars of Mirrodinfr1452010-10-01rare—
Scars of Mirrodinit1452010-10-01rare—
Scars of Mirrodinzht1452010-10-01rare—
Scars of Mirrodinja1452010-10-01rare—
Scars of Mirrodinzhs1452010-10-01rare—
Scars of Mirrodinpt1452010-10-01rare—
Scars of Mirrodines1452010-10-01rare—
Scars of Mirrodinen1452010-10-01rare$13.74
Scars of Mirrodinde1452010-10-01rare—