Trap
NormalQuaking Mirror Force
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When an opponent's monster declares an attack: Change all your opponent's Attack Position monsters to face-down Defense Position. Monsters changed to face-down Defense Position by this effect cannot change their battle positions.
Quaking Mirror Force — Power Evaluation
Final Score: 61 ± 5 · Confidence: Medium
- Intrinsic: 58 · Deck: 60 · Meta: provisional
- Primary role: Board breaker / Going-second · Secondary: Floodgate / Control
Why it scores here
Quaking Mirror Force is a broadly splashable defensive trap that disrupts opponent attacks by flipping all attack-position monsters face-down with a lock preventing position changes. While its effect is strong and board-wide, it is purely reactive with no combo potential or card advantage generation, making it a supplementary control tool rather than a power engine. Its score reflects strong effect quality and exceptional splashability across 122+ archetypes, offset by zero material utility, minimal combo conversion, and dependence on drawing the trap when needed.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 55 | Passive trap card in 400/400 decks (1–3 copies, average 1.38) with reliable activation on opponent attack declaration, but no search routes and dependent on drawing it (verified from deck evidence and card text). |
| Combo & Conversion | 10 | Zero appearances in 0 combo boards; this is purely a reactive effect that does not build boards or extend combos (verified from combos_evidence.appearances = 0). |
| Resource Economy | 50 | Free activation with no cost, but generates no card advantage—flipping monsters disrupts but returns no value, resulting in neutral resource economy (inferred from card text and trap mechanics). |
| Effect & Interaction | 65 | Board-wide flip effect locks all opponent attack-position monsters face-down, preventing position changes; soft disruption highly effective against attack-based strategies but does not negate effects or destroy (verified from card text; observed in 122+ archetype adoption). |
| Material Utility | 0 | Trap cards cannot serve as monster material and carry no level, attribute, or type synergy—utility is zero (verified from card type and Yu-Gi-Oh! mechanics). |
| Resilience & Flexibility | 60 | Reliably activates on opponent's attack declaration at instant speed, but once resolved is spent (sent to GY) with no recursion or multi-turn resilience (verified from card text and trap mechanics). |
| Deck-Building Efficiency | 70 | Light slot cost averaging 1.38 copies per deck across 122 distinct archetypes demonstrates exceptional splashability; no garnet risk or archetype lock makes it a clean, low-friction include (observed from decks_evidence: 400 decks, 122 archetypes, avg copies 1.38). |
Calculation
Weight profile: 0.8 Board breaker + 0.2 Floodgate/Control. Intrinsic ≈ 58, Deck ≈ 60, Meta = provisional. Modifiers: Splashability (2). Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Board-wide disruption: flips all opponent attack-position monsters face-down simultaneously
- Position lock: prevents flipped monsters from returning to Attack Position until the end of turn
- Exceptional splashability: usable in any archetype as a defensive tech
- Reliable trigger: activates whenever opponent makes an attack declaration (universal condition)
- Instant-speed response: resolves during opponent's Battle Phase without vulnerability to most interruption
Weaknesses
- Purely reactive: no offensive contribution or combo potential; does not build board value
- No card advantage: spending 1 card for disruption generates no net gain
- Soft disruption: flipping monsters does not negate effects or remove them from field
- Not searchable: must be drawn; no archetype-specific tutors or search routes
- Single-use per activation: spent after resolving, sent to GY with no recursion
Counters / choke points
- Effect negation (Ash Blossom & Joyous Spring, Infinite Impermanence) if chained during activation window
- Monsters with floating effects or protection that activate in Defense Position
- Decks relying on XYZ, Fusion, or Synchro strategies rather than attack-position board presence
- Cards preventing the Battle Phase or forcing a skip of it
Best use
Defensive trap responding to opponent attacks; supplementary board control and tempo disruption in control and trap strategies. Decks: Traptrix, Labrynth, Dogmatika, Control-focused and trap-heavy strategies.
Evidence & gaps
- Verified: Card text: free activation when opponent's monster declares attack, flips all opponent's attack-position monsters face-down, locks position changes; Format legality: allowed in TCG, OCG, and MasterDuel (no restriction or ban); Deck inclusion: 400/400 decks in sample run it in main deck (100% inclusion rate)
- Observed: 122 distinct archetypes include this card (exceptionally broad adoption); Highest inclusion in trap-heavy strategies: Labrynth (11%), Traptrix (10.5%), Dogmatika (8.8%); Average 1.38 copies per deck; majority run 1 copy, minority run 2–3 copies; Top deck partners are hard interaction cards (Ash Blossom 60.8%, Infinite Impermanence 55.2%), suggesting this is supplementary disruption alongside primary control
- Inferred: No search routes available: trap cards are generally unsearchable in Yu-Gi-Oh!; Activation is reliable on every opponent attack (universal trigger condition); Material utility is zero: trap cards cannot serve as monster material or provide synergy as material; Resource economy is neutral: 1 trap card spent for soft disruption with no advantage returned; Resilience is single-activation: instant-speed response but once resolved is spent to GY with no recursion
- Data gaps: No combo evidence supplied — combo conversion and combo utility are text-only inference from card mechanics, not observed from recorded boards No banlist token — assumed unlimited (3 copies allowed) in TCG, OCG, and MasterDuel based on card visibility in all formats No usage statistics (StatisticsCard) — archetype inclusion percentage and consistency inferred from deck sample only, not long-term historical data No top card ranking — cannot confirm if this card is in the current metagame top tier or is niche tech Guide evidence minimal — only 1 guide mentions this card; broader strategic context and role nuance are thin






