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Kelsien, the Plague

Card details, tags, similarity scores, and printings.

Kelsien, the Plague

Legendary Creature — Human Assassin

Vigilance, haste Kelsien gets +1/+1 for each experience counter you have. : Kelsien deals 1 damage to target creature you don't control. When that creature dies this turn, you get an experience counter.

$2.47

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

ActivatedDeath TriggerTriggered

Mana costs

× 1 × 1 × 1Multicolored cost

Classes and roles

Assassin

Creature kinds

Human

Color identity

BRW

Keyword tags

HasteVigilance

Mana value

Mana value 3

Theme tags

+1/+1 CountersBurn

Timing tags

Timing Sorcery

Type tags

Creature

Predicted tags

+1/+1 Counters

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Legendary Creature — Human Assassin · Mana cost: · Color identity: WBR

Shared traits: Creature, Assassin, Human · Same color identity · Matching mana cost

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Shared tags

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

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CreatureDeath TriggerTiming SorceryTriggered

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CreatureHumanVigilanceTiming SorceryTriggered

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Shared traits: Activated, Creature, Human · Same color identity · Matching mana cost

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Mana cost
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Shared tags

ActivatedCreatureHumanTiming SorceryTriggered

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

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CreatureHumanTiming SorceryTriggered

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Shared traits: Creature, Assassin, Human · Same color identity

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CreatureAssassinHumanHasteTiming SorceryTriggered

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

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

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CreatureHumanTiming SorceryTriggered

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CreatureHumanTiming Sorcery

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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 (0.593); 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
Secret Lair Dropen15582024-06-24mythic$15.11
Commander 2020de112020-04-17mythic—
Commander 2020en112020-04-17mythic$2.47
Commander 2020es112020-04-17mythic—
Commander 2020it112020-04-17mythic—
Commander 2020ru112020-04-17mythic—
Commander 2020fr112020-04-17mythic—
Commander 2020pt112020-04-17mythic—
Commander 2020ja112020-04-17mythic—