Trap
NormalDark Mirror Force
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3625
When an opponent's monster declares an attack: Banish all Defense Position monsters your opponent controls.
Dark Mirror Force — Power Evaluation
Final Score: 60 ± 8 · Confidence: Medium
- Intrinsic: 58 · Deck: 58 · Meta: provisional
- Primary role: Board breaker · Secondary: Removal/Negation
Why it scores here
Dark Mirror Force converts one trap into a sweep of every Defense Position monster the opponent controls, which is a real one-for-many board effect when the opponent defends. It scores on that conversion and on its one-copy, no-garnet deck cost, which is why it is run in 50 of 50 sampled decks. It does not score on its text being a wipe alone: it is conditional on the opponent's monsters being in Defense Position, it adds no board of its own, and the combo evidence is empty, so the combo and resilience axes stay low.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 55 | Live as a set trap in 50 of 50 sampled decks at 1.06 copies on average, but no searcher or setup route is supplied in the evidence (observed deck inclusion; route inferred from text). |
| Combo & Conversion | 25 | The text only removes existing opponent monsters and builds nothing, and no combo boards are supplied (inferred from text). |
| Resource Economy | 65 | One card removes all Defense Position monsters, a multi-for-one swing, but it banishes rather than refuels and draws nothing (inferred from text). |
| Effect & Interaction | 55 | Strong sweep against defensive boards but gated on the opponent's monsters being in Defense Position and on an attack declaration (verified from text, with deck-level usage observed). |
| Material Utility | 5 | A trap card with no monster body, so it provides no material value (verified from card type). |
| Resilience & Flexibility | 40 | A single set trap that depends on being un-negated and on the opponent defending; no redundancy beyond the copy count (inferred from text). |
| Deck-Building Efficiency | 90 | One slot at 1 copy in most decks, no garnet or lock, and legal in all four listed formats (verified from decks and formats). |
Calculation
Weight profile: 0.7 Board breaker + 0.3 Removal/Negation. Intrinsic ≈ 58, Deck ≈ 58, Meta = provisional. Modifiers: Exceptional compactness (2). Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- One-for-many sweep of every Defense Position monster the opponent controls
- Single-copy, no-garnet slot that fits into 21 different archetypes' decks
- Strong against defensive or set-heavy boards
Weaknesses
- Conditional: does nothing against an opponent whose monsters are all in Attack Position
- Adds no board, draw, or refuel of its own, so it does not convert resources into a win on its own
- Trap-only: no material or body value
Counters / choke points
- Trap negation of any kind (inferred from text; no counter data supplied)
- An opponent that keeps monsters in Attack Position or attacks through the trap window (inferred from text)
Best use
Board breaker against defensive boards, usually one copy as a set trap. Decks: Dark Magician, Gaia, Thunder Dragon. Suggested copies: 1.
Evidence & gaps
- Verified: Card text: banishes all Defense Position monsters the opponent controls on an opponent's attack declaration; Trap card type, Normal race, formats TCG/OCG/MasterDuel/DuelLinks; Present in 50 of 50 sampled decks, 1.06 copies on average, 21 distinct archetypes
- Observed: Gameplay spread: 52% of decks in gameplay type 7, 30% in type 6; Top partners Raigeki, Dark Magician and Dark Magic Attack appear in 46-54% of decks
- Inferred: Board breaker role: the text sweeps defensive boards, and the decks confirm it is run for that purpose; Set-trap access is the only route; no searcher is listed; Counters are trap negation and an attack-first opponent
- Data gaps: no combos supplied, so combo conversion is text-only inference no guides supplied no banlist token, assumed 3 copies (unlimited) no usage statistics (StatisticsCard), so archetype inclusion % is inferred from the deck sample only no current-format ranking data (top-card data not supplied)