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Underdark Beholder

Card details, tags, similarity scores, and printings.

Underdark Beholder

Creature — Beholder

Underdark Beholder enters the battlefield with ten eyestalk counters on it. If Underdark Beholder would be dealt damage, remove that many eyestalk counters from it instead. If you can't, sacrifice it. Whenever Underdark Beholder attacks, reveal cards from the top of your library until you reveal an instant, sorcery, or enchantment card with converted mana cost less than the number of eyestalk counters on Underdark Beholder. You may cast it without paying its mana cost. Shuffle your library.

$0.41

Commander: Not 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

Attack TriggerEtb TriggerTriggered

Mana costs

× 2

Creature kinds

Beholder

Color identity

B

Mana value

Mana value 6+

Theme tags

Card Draw

Timing tags

Timing Sorcery

Type tags

Creature

Predicted tags

Card Draw

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

Baleful Beholder

Score 0.876unitless formula ranking

Creature — Beholder · Mana cost: · Color identity: B

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

Score details
Text (embedding)
0.905
Tags and themes
0.667
Color identity
1.000
Mana cost
1.000

Shared tags

CreatureBeholderTiming SorceryTriggered

A-Baleful Beholder

Score 0.872unitless formula ranking

Creature — Beholder · Mana cost: · Color identity: B

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

Score details
Text (embedding)
0.898
Tags and themes
0.667
Color identity
1.000
Mana cost
1.000

Shared tags

CreatureBeholderTiming SorceryTriggered

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Score 0.824unitless formula ranking

Creature — Demon · Mana cost: · Color identity: B

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

Score details
Text (embedding)
0.907
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0.400
Color identity
1.000
Mana cost
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Shared tags

Attack TriggerCreatureTiming SorceryTriggered

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Score 0.814unitless formula ranking

Creature — Zombie Mutant · Mana cost: · Color identity: B

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

Score details
Text (embedding)
0.856
Tags and themes
0.500
Color identity
1.000
Mana cost
1.000

Shared tags

Attack TriggerCreatureTiming SorceryTriggered

Nihilith

Score 0.813unitless formula ranking

Creature — Horror · Mana cost: · Color identity: B

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

Score details
Text (embedding)
0.910
Tags and themes
0.333
Color identity
1.000
Mana cost
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Shared tags

CreatureTiming SorceryTriggered

Ghastly Death Tyrant

Score 0.812unitless formula ranking

Creature — Beholder Skeleton · Mana cost: · Color identity: B

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

Score details
Text (embedding)
0.887
Tags and themes
0.400
Color identity
1.000
Mana cost
1.000

Shared tags

CreatureBeholderTiming SorceryTriggered

Witch-king, Bringer of Ruin

Score 0.811unitless formula ranking

Legendary Creature — Wraith Noble · Mana cost: · Color identity: B

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

Score details
Text (embedding)
0.871
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Color identity
1.000
Mana cost
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Shared tags

Attack TriggerCreatureTiming SorceryTriggered

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Score 0.810unitless formula ranking

Creature — Giant · Mana cost: · Color identity: B

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

Score details
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0.850
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Color identity
1.000
Mana cost
1.000

Shared tags

Attack TriggerCreatureTiming SorceryTriggered

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Score 0.808unitless formula ranking

Legendary Creature — Demon · Mana cost: · Color identity: B

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

Score details
Text (embedding)
0.864
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1.000
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Attack TriggerCreatureTiming SorceryTriggered

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Score 0.805unitless formula ranking

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

Shared traits: Attack Trigger, Creature, Timing Sorcery · Same color identity

Score details
Text (embedding)
0.881
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0.571
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1.000
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0.625

Shared tags

Attack TriggerCreatureTiming SorceryTriggered

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Score 0.805unitless formula ranking

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

Score details
Text (embedding)
0.861
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1.000
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CreatureEtb TriggerTiming SorceryTriggered

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Score 0.803unitless formula ranking

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

Score details
Text (embedding)
0.881
Tags and themes
0.375
Color identity
1.000
Mana cost
1.000

Shared tags

CreatureTiming SorceryTriggered

Xanathar, Guild Kingpin

Score 0.803unitless formula ranking

Legendary Creature — Beholder · Mana cost: · Color identity: UB

Shared traits: Creature, Beholder, Timing Sorcery

Score details
Text (embedding)
0.908
Tags and themes
0.667
Color identity
0.500
Mana cost
0.750

Shared tags

CreatureBeholderTiming SorceryTriggered

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Score 0.803unitless formula ranking

Creature — Dragon Warlock · Mana cost: · Color identity: B

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

Score details
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0.894
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CreatureTiming SorceryTriggered

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Score 0.802unitless formula ranking

Creature — Horror · Mana cost: · Color identity: B

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

Score details
Text (embedding)
0.861
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1.000
Mana cost
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CreatureTiming SorceryTriggered

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Score 0.800unitless formula ranking

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

Score details
Text (embedding)
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1.000
Mana cost
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CreatureTiming SorceryTriggered

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Score 0.799unitless formula ranking

Creature — Crab Demon · Mana cost: · Color identity: B

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

Score details
Text (embedding)
0.887
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Color identity
1.000
Mana cost
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Shared tags

CreatureTiming SorceryTriggered

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Score 0.798unitless formula ranking

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Shared traits: Creature, Timing Sorcery, Triggered · 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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0.885
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0.333
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1.000
Mana cost
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Score 0.797unitless formula ranking

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Shared traits: Creature, Timing Sorcery, Triggered · 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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0.870
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1.000
Mana cost
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Score 0.797unitless formula ranking

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

Score details
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0.852
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1.000
Mana cost
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CreatureTiming SorceryTriggered

Noosegraf Mob

Score 0.795unitless formula ranking

Creature — Zombie · Mana cost: · Color identity: B

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

Score details
Text (embedding)
0.850
Tags and themes
0.429
Color identity
1.000
Mana cost
1.000

Shared tags

CreatureTiming SorceryTriggered

Lurking Nightstalker

Score 0.795unitless formula ranking

Creature — Nightstalker · Mana cost: · Color identity: B

Shared traits: Attack Trigger, Creature, Timing Sorcery · Same color identity

Score details
Text (embedding)
0.895
Tags and themes
0.571
Color identity
1.000
Mana cost
0.433

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Attack TriggerCreatureTiming SorceryTriggered
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 (0.584); 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
Mystery Booster Playtest Cards 2021en492021-08-20rare$0.41
Mystery Booster Playtest Cards 2019en492019-11-07rare$1.55