Shield Worm
EARTH 4

Shield Worm

  • Archetype:
  • Worm

  • ATK:
  • 800

  • DEF:
  • 2000

  • View:
  • 3054




When this card is Summoned, it is changed to Defense Position. Then, send 1 card from the top of your opponent's Deck to the Graveyard for each face-up Insect-Type monster you control.




 
 
AI Power Analysis
UtilityConfidence: MediumEvaluated Jan 16, 2026
45± 6/ 100
Power Score
Intrinsic 44
Deck 45

Shield Worm — Power Evaluation

Final Score: 45 ± 6 · Confidence: Medium

  • Intrinsic: 44 · Deck: 45 · Meta: provisional
  • Primary role: Utility · Secondary: Material body, Combo enabler

Why it scores here

Shield Worm converts its accessible state — a plain Level 4 EARTH Insect that always normal-summons itself — into only a small, scaling mill: on Summon it goes to Defense Position and sends 1 opponent Deck card to the Graveyard per face-up Insect you control, which is a single card when it is alone. It builds no board, generates no card advantage, and offers no disruption, so almost all of its value sits in being a clean 2000-DEF EARTH Insect body/material plus a marginal mill trigger inside established mill packages. Its 2000 DEF and insect typing earn it points only through material/body utility, not through stats or rarity; the high-DEF wall does not by itself justify a higher score. The 9-deck sample confirms it is a real but minor one-of tech in mill shells, which is why it lands just below the mid-point rather than in the low-20s.

Axis scores

Axis Score Evidence
Accessibility 55 A Level 4 EARTH Insect that is always normal-summonable and appears in 9 of the sampled decks as a 1.22-avg one-of, though its payoff needs other Insects already on field (observed).
Combo & Conversion 18 Text gives no board, no extension and no starter line, and the recorded combo sample shows 0 appearances as starter/material/payoff (observed).
Resource Economy 25 It costs your Summon for zero card advantage — the only 'gain' is milling the opponent, which is not your own resource (verified).
Effect & Interaction 10 The effect interacts only with the opponent's Deck top, delivering no negation, removal, or disruption of any kind (verified).
Material Utility 55 As a Level 4 EARTH Insect with 2000 DEF it is a clean generic material/wall and still functions when its trigger is negated, since self-position change does not block its use as material (inferred).
Resilience & Flexibility 35 A one-shot Summon trigger with no recursion, protection, or multi-zone use; blanking it leaves only an 800-ATK body in Defense (verified).
Deck-Building Efficiency 52 No cost, no lock, no once-per-turn clause and no garnet requirement make it a cheap single slot, but it is only worth that slot in mill shells (inferred).

Calculation

Weight profile: 0.7 Utility + 0.3 Material body. Intrinsic ≈ 44, Deck ≈ 45, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck

Strengths

  • Level 4 EARTH Insect with 2000 DEF — a clean generic body/wall that can be used as material even if its effect is negated.
  • No cost, no lock, no once-per-turn clause; the mill scales with the number of face-up Insects you control.
  • Compact one-of tech that slots into established mill packages (Warm Worm, Needle Worm, the Jar series, Card Destruction).

Weaknesses

  • Effect does nothing on its own beyond a 1-card mill; it produces no board and no card advantage.
  • It forces itself into Defense Position, so it contributes almost nothing offensively.
  • Milling the opponent can actively fuel graveyard-based opposing strategies.
  • Zero interaction — no negation, removal, or disruption of the opponent's plays.

Counters / choke points

  • Graveyard-reliant opposing decks that benefit from being milled.
  • Anti-mill / deck-out defense and graveyard-shuffling effects.
  • Negating or removing it on Summon leaves only an 800 ATK / 2000 DEF body.

Best use

Mill engine piece and EARTH Insect material body. Decks: Worm mill, Insect mill / deck-out. Suggested copies: 1.

Evidence & gaps

  • Verified: Card text: when Summoned it is changed to Defense Position, then sends 1 card from the top of the opponent's Deck to the Graveyard for each face-up Insect-Type monster you control.; Stats/typing: Level 4 EARTH Insect, 800 ATK / 2000 DEF, no once-per-turn clause stated.; The effect provides no card advantage, negation, removal, or protection.
  • Observed: 9 decks in the sample run it, 8 of them as a single copy (avg 1.22 copies), main deck only.; Co-deck partners are mill/stall pieces: Warm Worm 100%, Needle Worm / Morphing Jar / Card Destruction ~77.8%.; 0 appearances across the recorded combo sample; no starter, material, or payoff presence.
  • Inferred: Being a Summon trigger that self-positions to Defense, it still functions as a generic Level 4 EARTH material when its effect is negated or irrelevant.; The mill is near-blank outside dedicated mill/Insect shells, since it is only a single card when it is your only Insect.; Milling the opponent's Deck can hand resources to graveyard-based opposing strategies.
  • Data gaps: no combos supplied — combo conversion is text-only inference no guides supplied no banlist token — assumed 3 copies (unlimited) no usage statistics (StatisticsCard) — archetype inclusion % inferred from deck sample only











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