Steel Shell
Spell Equip

Steel Shell

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A WATER monster equipped with this card increases its ATK by 400 points and decreases its DEF by 200 points.




 
 
AI Power Analysis
UtilityConfidence: LowEvaluated Oct 8, 2026
33± 8/ 100
Power Score
Intrinsic 33

Steel Shell — Power Evaluation

Final Score: 33 ± 8 · Confidence: Low

  • Intrinsic: 33 · Deck: — · Meta: provisional
  • Primary role: Utility

Why it scores here

Steel Shell is a narrow Equip Spell that only does something when a WATER monster is already on the field, and its text gives a flat +400 ATK / -200 DEF with no card advantage, interaction or follow-up. The score comes from the rubric's Utility profile applied to that text, with no deck or combo evidence to lift it. The view count (3040) and the card's Equip type earned no points, and the card has no ATK of its own to count.

Axis scores

Axis Score Evidence
Accessibility 35 Equip Spell with no search or recovery route in the evidence; only live when drawn alongside a WATER target (inferred from text).
Combo & Conversion 40 Adds +400 ATK to one WATER body and nothing more; no combo examples supplied (inferred from text).
Resource Economy 25 One card spent for a stat boost with no draw, search or recursion; roughly even at best (verified from text).
Effect & Interaction 5 No negation, removal or hand-trap effect (verified from text).
Material Utility 10 A Spell cannot be used as material and the equip gives the target no new material value (verified from text).
Resilience & Flexibility 30 Dies with its target to removal, and the stat bonus is lost when the target leaves the field (inferred from text).
Deck-Building Efficiency 60 Cheap to run at 3 copies with no garnet or lock, but the WATER-only restriction limits where it fits (inferred from text).

Calculation

Weight profile: Utility / no clear role (default); no secondary role blend. Intrinsic ≈ 33, Deck ≈ —, Meta = provisional. Modifiers: none. Final formula: Final = Intrinsic (no decks and no combos; Deck = null)

Strengths

  • Cheap, unrestricted-copy equip that adds a flat +400 ATK to a WATER monster
  • Legal in all listed formats (TCG, OCG, MasterDuel, DuelLinks)

Weaknesses

  • Only functions with a WATER monster on the field; dead otherwise
  • Gives no card advantage, interaction or resilience beyond the equipped body
  • No deck, combo or guide evidence to show a practical role

Counters / choke points

  • Removal or bounce of the equipped WATER monster, which also removes the equip
  • Non-WATER boards, where the card has no target

Best use

Situational ATK boost for WATER monsters; no evidenced home deck. Suggested copies: 1.

Evidence & gaps

  • Verified: Card text: WATER monster equipped gains +400 ATK and -200 DEF; Equip Spell, legal in TCG, OCG, MasterDuel and DuelLinks; Zero decks, combos and guides in evidence
  • Inferred: Needs a WATER target to do anything; No searcher or recovery route exists in the supplied evidence
  • Data gaps: no decks supplied — deck/synergy signals unavailable 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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