Foucault's Cannon
DARK 52

Foucault's Cannon

  • ATK:
  • 2200

  • DEF:
  • 1200

  • View:
  • 2695




[ Pendulum Effect ] Once per turn, during the End Phase, if this card was activated this turn: You can target 1 face-up Spell/Trap Card on the field; destroy it. [ Monster Effect ] ''A mechanized life form, roving through space-time. But the mysterious thing is that its memory i... m...stly gone. W...at is t...e reason? D..... refuse t... b.... interfered w...h?''




 
 
AI Power Analysis
Removal / NegationConfidence: MediumEvaluated Oct 9, 2026
47± 6/ 100
Power Score
Intrinsic 48
Deck 50

Foucault's Cannon — Power Evaluation

Final Score: 47 ± 6 · Confidence: Medium

  • Intrinsic: 48 · Deck: 50 · Meta: provisional
  • Primary role: Removal / Negation · Secondary: Material body

Why it scores here

Foucault's Cannon converts into a single, once-per-turn destruction of one face-up Spell/Trap during the End Phase, and only when the card was activated that turn. Its 2200 ATK and Level 5 Dark Spellcaster body are not what earns points: the body is a modest generic material, and the effect's narrow timing and self-condition cap its interaction score. It is played in 12 sampled decks, mostly in Dragon/Draconia shells, which confirms it is a real and accessible pick, but there are no combo records to show it converts into a board, so combo conversion stays low.

Axis scores

Axis Score Evidence
Accessibility 42 Live in a Pendulum shell (12 sampled decks, avg 1.5 copies) but needs Pendulum access and has only scale 2 (observed, inferred).
Combo & Conversion 25 No combo boards recorded; the only effect is a single End Phase destruction, so conversion is text-only and low (inferred).
Resource Economy 40 Destroys one Spell/Trap without card advantage and the card itself stays on the field, so there is no refuel or net gain (verified).
Effect & Interaction 35 Destroys one face-up S/T once per turn in the End Phase only, with an activation precondition; soft interaction (verified).
Material Utility 50 Level 5 Dark Spellcaster with 2200 ATK is a usable material body; the monster-effect section is flavor text, so nothing is blanked by negation (verified, inferred).
Resilience & Flexibility 40 Its effect is restricted to one timing and one activation window, so one negate or a changed End Phase ends it (inferred).
Deck-Building Efficiency 60 Normal-frame Pendulum with no garnet or lock and 1–2 copies, so it is cheap to run (verified, observed).

Calculation

Weight profile: 0.7 Removal/Negation + 0.3 Material body/Normal. Intrinsic ≈ 48, Deck ≈ 50, Meta = provisional. Modifiers: Self-restriction (-2). Final formula: 0.40*Intrinsic + 0.60*Deck

Strengths

  • Destroys one face-up Spell/Trap once per turn with no opponent response window beyond the End Phase timing.
  • Level 5 Dark Spellcaster body is a usable generic material and is not blanked by negation.
  • No garnet or lock; cheap to run at 1–2 copies.

Weaknesses

  • Only one destruction per turn and only in the End Phase, so it cannot answer threats during the opponent's turn.
  • Requires the card to have been activated this turn, which is a narrow precondition.
  • No combo or board evidence, so its conversion value is unproven.

Counters / choke points

  • Negation or responding to the activation (inferred).
  • Destruction of the card itself, or changing the End Phase window (inferred).

Best use

Removal / utility spell-trap answer in the End Phase, with a material body. Decks: Dragon/Draconia Pendulum shells (Lancephorhynchus, Sky Dragoons of Draconia, Dragon Horn Hunter partners), Pendulum Magician / Dracoslayer lists. Suggested copies: 2.

Evidence & gaps

  • Verified: Effect text: once per turn, End Phase, if activated this turn, destroy 1 face-up Spell/Trap.; Level 5 Dark Spellcaster, ATK 2200 / DEF 1200, Pendulum scale 2; monster-effect section is flavor text.; Legal in TCG, OCG, MasterDuel and DuelLinks.; 12 sampled decks, 1.5 avg copies, 0 side-deck copies.
  • Observed: Appears in 12 decks across 11 archetypes, 83% gameplay type 4.; Top partners appear in 58–75% of its decks (Lancephorhynchus, Dragon Horn Hunter, Sky Dragoons of Draconia).
  • Inferred: Activation precondition and End Phase-only timing limit its interaction window.; Its role is a soft Removal answer with a small material body; no combo corroboration.
  • 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 monster-effect section is flavor text, so no body effect is confirmed











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