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Fiendish Duo

Card details, tags, similarity scores, and printings.

Fiendish Duo

Creature — Devil

First strike (This creature deals combat damage before creatures without first strike.) If a source would deal damage to an opponent, it deals double that damage to that player instead.

$2.97

Commander: LegalModern: Not 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

Combat DamagePassive Static

Mana costs

× 2

Creature kinds

Devil

Color identity

R

Keyword tags

DoubleFirst Strike

Mana value

Mana value 6+

Timing tags

Timing Sorcery

Type tags

Creature

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Shared traits: Creature, Devil, Passive Static · Same color identity

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Combat DamageCreatureTiming Sorcery

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Color identity
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Mana cost
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Shared tags

CreaturePassive StaticTiming Sorcery

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Score 0.799unitless formula ranking

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

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

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

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Mana cost
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Passive StaticTiming Sorcery

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Score 0.793unitless formula ranking

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

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

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Mana cost
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Shared traits: Creature, Double, Passive Static · Same color identity

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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 (0.577); 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
Foundations Jumpstartde5452024-11-15mythic—
Foundations Jumpstarten5452024-11-15mythic$1.71
Foundations Jumpstartfr5452024-11-15mythic—
Foundations Jumpstartes5452024-11-15mythic—
Foundations Jumpstartit5452024-11-15mythic—
Foundations Jumpstartja5452024-11-15mythic—
Murders at Karlov Manor Commanderja1532024-02-09mythic—
Murders at Karlov Manor Commanderfr1532024-02-09mythic—
Murders at Karlov Manor Commanderde1532024-02-09mythic—
Murders at Karlov Manor Commanderit1532024-02-09mythic—
Murders at Karlov Manor Commanderen1532024-02-09mythic$2.97
Kaldheim Promosja12021-01-29mythic—
Game Night 2019en42019-11-15mythic—