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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

Similar cards

Showing 1–24 of 34,604 candidates

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

One with Nothing

Score 0.452unitless formula ranking

Instant · Mana cost: · Color identity: B

Shared traits: No shared tags

Score details
Text (embedding)
0.740
Tags and themes
0.000
Color identity
0.000
Mana cost
0.083

No shared tags contributed to this comparison.

Riverglide Pathway // Lavaglide Pathway

Score 0.460unitless formula ranking

Land // Land · Mana cost: — · Color identity: UR

Shared traits: No shared tags

Score details
Text (embedding)
0.755
Tags and themes
0.000
Color identity
0.000
Mana cost
0.071

No shared tags contributed to this comparison.

Clearwater Pathway // Murkwater Pathway

Score 0.460unitless formula ranking

Land // Land · Mana cost: — · Color identity: UB

Shared traits: No shared tags

Score details
Text (embedding)
0.755
Tags and themes
0.000
Color identity
0.000
Mana cost
0.071

No shared tags contributed to this comparison.

Snow-Covered Mountain

Score 0.463unitless formula ranking

Basic Snow Land — Mountain · Mana cost: — · Color identity: R

Shared traits: Activated

Score details
Text (embedding)
0.704
Tags and themes
0.167
Color identity
0.000
Mana cost
0.071

Shared tags

Activated

Twinblade Blessing

Score 0.464unitless formula ranking

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

Shared traits: No shared tags

Score details
Text (embedding)
0.752
Tags and themes
0.000
Color identity
0.000
Mana cost
0.125

No shared tags contributed to this comparison.

Barkchannel Pathway // Tidechannel Pathway

Score 0.465unitless formula ranking

Land // Land · Mana cost: — · Color identity: UG

Shared traits: No shared tags

Score details
Text (embedding)
0.764
Tags and themes
0.000
Color identity
0.000
Mana cost
0.071

No shared tags contributed to this comparison.

Branchloft Pathway // Boulderloft Pathway

Score 0.466unitless formula ranking

Land // Land · Mana cost: — · Color identity: WG

Shared traits: No shared tags

Score details
Text (embedding)
0.766
Tags and themes
0.000
Color identity
0.000
Mana cost
0.071

No shared tags contributed to this comparison.

Snow-Covered Plains

Score 0.467unitless formula ranking

Basic Snow Land — Plains · Mana cost: — · Color identity: W

Shared traits: Activated

Score details
Text (embedding)
0.718
Tags and themes
0.143
Color identity
0.000
Mana cost
0.071

Shared tags

Activated

Cragcrown Pathway // Timbercrown Pathway

Score 0.467unitless formula ranking

Land // Land · Mana cost: — · Color identity: RG

Shared traits: No shared tags

Score details
Text (embedding)
0.767
Tags and themes
0.000
Color identity
0.000
Mana cost
0.071

No shared tags contributed to this comparison.

Snow-Covered Island

Score 0.469unitless formula ranking

Basic Snow Land — Island · Mana cost: — · Color identity: U

Shared traits: Activated

Score details
Text (embedding)
0.722
Tags and themes
0.143
Color identity
0.000
Mana cost
0.071

Shared tags

Activated

Nourish

Score 0.469unitless formula ranking

Instant · Mana cost: · Color identity: G

Shared traits: No shared tags

Score details
Text (embedding)
0.765
Tags and themes
0.000
Color identity
0.000
Mana cost
0.100

No shared tags contributed to this comparison.

Island

Score 0.471unitless formula ranking

Basic Land — Island · Mana cost: — · Color identity: U

Shared traits: Activated

Score details
Text (embedding)
0.725
Tags and themes
0.143
Color identity
0.000
Mana cost
0.071

Shared tags

Activated

Hengegate Pathway // Mistgate Pathway

Score 0.471unitless formula ranking

Land // Land · Mana cost: — · Color identity: WU

Shared traits: No shared tags

Score details
Text (embedding)
0.773
Tags and themes
0.000
Color identity
0.000
Mana cost
0.071

No shared tags contributed to this comparison.

Osseous Exhale

Score 0.471unitless formula ranking

Instant · Mana cost: · Color identity: W

Shared traits: No shared tags

Score details
Text (embedding)
0.769
Tags and themes
0.000
Color identity
0.000
Mana cost
0.100

No shared tags contributed to this comparison.

Blightstep Pathway // Searstep Pathway

Score 0.473unitless formula ranking

Land // Land · Mana cost: — · Color identity: BR

Shared traits: No shared tags

Score details
Text (embedding)
0.776
Tags and themes
0.000
Color identity
0.000
Mana cost
0.071

No shared tags contributed to this comparison.

Tropical Island

Score 0.473unitless formula ranking

Land — Forest Island · Mana cost: — · Color identity: UG

Shared traits: Activated

Score details
Text (embedding)
0.729
Tags and themes
0.143
Color identity
0.000
Mana cost
0.071

Shared tags

Activated

Snow-Covered Forest

Score 0.474unitless formula ranking

Basic Snow Land — Forest · Mana cost: — · Color identity: G

Shared traits: Activated

Score details
Text (embedding)
0.723
Tags and themes
0.167
Color identity
0.000
Mana cost
0.071

Shared tags

Activated

Kami's Flare

Score 0.475unitless formula ranking

Instant · Mana cost: · Color identity: R

Shared traits: No shared tags

Score details
Text (embedding)
0.774
Tags and themes
0.000
Color identity
0.000
Mana cost
0.100

No shared tags contributed to this comparison.

Plateau

Score 0.475unitless formula ranking

Land — Mountain Plains · Mana cost: — · Color identity: WR

Shared traits: Activated

Score details
Text (embedding)
0.732
Tags and themes
0.143
Color identity
0.000
Mana cost
0.071

Shared tags

Activated

Mountain

Score 0.475unitless formula ranking

Basic Land — Mountain · Mana cost: — · Color identity: R

Shared traits: Activated

Score details
Text (embedding)
0.725
Tags and themes
0.167
Color identity
0.000
Mana cost
0.071

Shared tags

Activated

Plains

Score 0.476unitless formula ranking

Basic Land — Plains · Mana cost: — · Color identity: W

Shared traits: Activated

Score details
Text (embedding)
0.733
Tags and themes
0.143
Color identity
0.000
Mana cost
0.071

Shared tags

Activated

Fire Magic

Score 0.478unitless formula ranking

Instant · Mana cost: · Color identity: R

Shared traits: No shared tags

Score details
Text (embedding)
0.782
Tags and themes
0.000
Color identity
0.000
Mana cost
0.083

No shared tags contributed to this comparison.

Pollen Remedy

Score 0.478unitless formula ranking

Instant · Mana cost: · Color identity: W

Shared traits: No shared tags

Score details
Text (embedding)
0.783
Tags and themes
0.000
Color identity
0.000
Mana cost
0.083

No shared tags contributed to this comparison.

Savannah

Score 0.478unitless formula ranking

Land — Forest Plains · Mana cost: — · Color identity: WG

Shared traits: Activated

Score details
Text (embedding)
0.729
Tags and themes
0.167
Color identity
0.000
Mana cost
0.071

Shared tags

Activated
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—