Spell
FieldSpider Web
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1935
If a monster declares an attack, it is changed to Defense Position at the end of the Damage Step. It cannot change its battle position until the End Phase of its controller's next turn, while this card remains on the field.
Spider Web — Power Evaluation
Final Score: 22 ± 6 · Confidence: Medium
- Intrinsic: 24 · Deck: 21 · Meta: provisional
- Primary role: Utility · Secondary: Floodgate/Control
Why it scores here
Spider Web is a Field Spell whose only effect switches an attacking monster to Defense Position after the Damage Step and locks its battle position, which converts to virtually no meaningful board advantage in modern play. It produces no card advantage, stops no attack, and negates nothing, so its effect converts into close to zero winning value. The few points it earns come from being a generic, archetype-free, cost-free single slot that is live from hand and searchable as a Field Spell, not from its ATK/DEF (it has none). Its generic status and clean slot cost raise the floor slightly, but the effect itself reliably delivers nothing, so it sits near the bottom of the utility band.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 22 | Field Spell that is live from hand and generically searchable by Field Spell tutors, yet it shows up in only 1 sampled deck at 1 copy with no starter or searched route (observed). |
| Combo & Conversion | 6 | Combos evidence records 0 appearances and the text produces no board or body on its own (observed). |
| Resource Economy | 18 | The text contains no draw, search, recovery, revival, or any form of card advantage (verified). |
| Effect & Interaction | 12 | After an attack the monster is turned to Defense Position and locked in place — a soft post-Damage-Step effect that stops no attack and negates nothing (verified). |
| Material Utility | 3 | As a Spell Card it cannot be used as material for any Summon (verified). |
| Resilience & Flexibility | 18 | The effect only functions while the Field Spell stays on the field and is trivially removed by any backrow or Field Spell removal (inferred). |
| Deck-Building Efficiency | 32 | A single, cost-free, archetype-free slot with no garnet and no lock, but it also adds essentially no value for the slot (inferred). |
Calculation
Weight profile: 0.7 Utility/default + 0.3 Floodgate/Control. Intrinsic ≈ 24, Deck ≈ 21, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Generic, archetype-free Field Spell with no cost and no deck restriction
- Cost-free single slot with no garnet and no lock clause
- Searchable through generic Field Spell tutors, so it is live from hand
Weaknesses
- Effect triggers only after the opponent chooses to attack, so it never prevents damage or stops a play
- Provides zero card advantage, no body, and no negation
- Symmetrical — it also affects your own attacking monsters
- Easily removed as a Field Spell before the trigger ever matters
Counters / choke points
- Any Field Spell / backrow removal (e.g. Mystical Space Typhoon, Twin Twisters, Cosmic Cyclone)
- Playing around it by attacking only with monsters you do not need in Attack Position
- Decks that do not rely on battle position changes
Best use
Soft control utility, low priority. Decks: Generic / casual Field Spell shells. Suggested copies: 1.
Evidence & gaps
- Verified: Spider Web is a Field Spell Card with no ATK/DEF and no archetype (card text).; Effect text: on attack declaration the monster is changed to Defense Position at the end of the Damage Step and cannot change battle position until the End Phase of its controller's next turn while this card remains on the field (card text).; The text grants no card advantage, no search, no negation, and cannot be used as material (card text).
- Observed: Spider Web appears in 1 sampled deck, run in the Main Deck at 1 copy (deck data).; Combos evidence records 0 total combos and 0 appearances for the card (combo data).; No usage statistics rows exist for this card and it is not a Top Card in any format (usage statistics/top-card data).
- Inferred: The effect is symmetrical and only interacts after the opponent has already attacked, so its disruption value is near zero.; As a Field Spell it is vulnerable to generic backrow removal and only functions while it stays on the field.; Generic Field Spell searchers could tutor it, giving untabled accessibility despite no observed route.
- 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 deck sample is a single deck dated 2024-06-18, so deck evidence is extremely thin