Trap
NormalMemory Loss
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3172
When a face-up Attack Position monster your opponent controls just activated an effect (except during the Damage Step): Negate that effect, and if you do, change that monster to face-up Defense Position.
Memory Loss — Power Evaluation
Final Score: 61 ± 6 · Confidence: Medium
- Intrinsic: 61 · Deck: 61 · Meta: provisional
- Primary role: Negation/Interaction · Secondary: Removal
Why it scores here
Memory Loss is a generic negation trap that cleanly disrupts opponent activations from face-up Attack Position monsters, making it splashable tech across diverse decks. However, it is entirely reactive—requiring opponent activation and a specific monster position—and does not generate value on its own. The trap's single-target negation and positioning change provide real interaction, but the lack of combo data and limited scope prevent a higher score.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 55 | Runs generically in 8 diverse decks (6 archetypes) with 1-copy standard, but requires setup and depends on opponent activation to trigger. (Observed) |
| Combo & Conversion | 40 | No combo appearances in evidence; as a reactive trap, it does not build boards or extend plays. (Inferred) |
| Resource Economy | 48 | Negating one effect is a 1-for-1 trade; the card is roughly neutral if it triggers, with no refuel or recursion. (Verified) |
| Effect & Interaction | 68 | Negates activated effects and forces positioning change to Defense, providing strong but single-target interaction limited to face-up Attack Position monsters. (Verified) |
| Material Utility | 15 | Trap cards have minimal material value; Memory Loss has no level, attribute, or race and serves only as chain fodder. (Inferred) |
| Resilience & Flexibility | 55 | Face-down setting avoids initial disruption, but the trap itself is a static resource vulnerable to Spell/Trap removal with no multi-zone flexibility. (Inferred) |
| Deck-Building Efficiency | 78 | Generic tech with no archetype lock, no brick potential, and 1-copy standard; cleanly splashable into any deck without restriction. (Observed) |
Calculation
Weight profile: Primary role: Negation/Interaction (100%). Intrinsic ≈ 61, Deck ≈ 61, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Generic negation trap splashable into any deck without archetype lock
- Negates activated effects and forces positioning disruption (ATK → DEF)
- Clean deckbuilding with 1-copy standard and no brick potential
Weaknesses
- Entirely reactive—requires opponent activation and face-up Attack Position monster
- Single-target negation; does not affect multiple effects or face-down activations
- Does not generate card advantage or build your own board
- Vulnerable to Spell/Trap removal once set
Counters / choke points
- Spell/Trap removal (Harpie's Feather Duster, Mystical Space Typhoon)
- Decks that activate effects from face-down or Defense Position monsters
- Hand traps that negate before Memory Loss resolves (Ash Blossom & Joyous Spring)
Best use
Going-second interaction; negation and board disruption. Decks: Control decks, Going-second strategies, Decks with other negation pieces. Suggested copies: 1.
Evidence & gaps
- Verified: Card text negates activated effects from face-up Attack Position monsters and changes to Defense Position; 8 decks running 1 copy each; 6 distinct archetypes including Cyber Dragon, Vernusylph, Madolche, Scareclaw; No explicit Once-Per-Turn clause in text
- Observed: 1-copy standard across all 8 decks (100% consistency); Top deck partners are staple interaction pieces (Impermanence 50%, Ash Blossom 50%, Called by the Grave 50%); Included across multiple gameplay types (37.5% type-7, 25% type-10, 25% type-6, 12.5% type-4)
- Inferred: Accessibility ~55: reactive effect requires opponent activation, but generic and broadly splashable; Combo conversion ~40: reactive negation trap with no board-building capacity; cannot be verified without combo data; Effect interaction ~68: hard negation, but limited to face-up Attack Position monsters only; Deckbuilding efficiency ~78: generic tech with no archetype lock or brick potential
- Data gaps: No combos supplied — combo conversion is entirely text-based inference; cannot verify how often it triggers in extended play No guides supplied — no expert commentary on practical role or metagame value No banlist info — assumed 3 copies (unlimited in all formats) No usage statistics (StatisticsCard) — archetype inclusion % inferred from 8-deck sample only; may not be representative No metagame context or date — cannot assess whether 8-deck sample is contemporaneous or historical