Trap
CounterMagic Jammer
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5318
When a Spell Card is activated: Discard 1 card; negate the activation, and if you do, destroy it.
Magic Jammer — Power Evaluation
Final Score: 58 ± 6 · Confidence: Medium
- Intrinsic: 60 · Deck: 57 · Meta: provisional
- Primary role: Negation/Interaction
Why it scores here
Magic Jammer scores 58 as a staple reactive negation trap card that performs cleanly as a spell-line disruption piece. Its strength lies in being a hard negation with destroy against Spells—a universally accessible and splashable interaction—and in its efficient deck-building cost (zero brick risk, runs smoothly across 60+ archetypes at 1.4 avg copies). However, it does not generate card advantage (trades 1 discard for 1 negate), produces no combo lines or board development, and its value is entirely dependent on opponent Spell activation, making it a reactive support piece rather than a power driver.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 65 | Appears in 155 decks across 60+ distinct archetypes at 1.4 avg copies, all main-deck, confirming reliable access and no garnet risk. (verified) |
| Combo & Conversion | 15 | Zero combo appearances in supplied boards; card text is purely reactive and produces no multi-card synergy or board development. (observed) |
| Resource Economy | 45 | Costs 1 discard to negate and destroy 1 Spell, a −1 exchange on surface that is situationally even when Spells generate advantage. (inferred) |
| Effect & Interaction | 72 | Negates spell activation and destroys the spell, a hard and immediate interaction against spell lines, though limited to Spells only. (verified) |
| Material Utility | 18 | Trap card with no Level, Attribute, or Race synergy; rarely used as combo material and has no special material properties. (inferred) |
| Resilience & Flexibility | 35 | Single-use per turn (standard trap), non-recurring, dependent on opponent Spell activation, with no recovery or multi-zone utility. (inferred) |
| Deck-Building Efficiency | 78 | Clean staple trap with no brick or lock risk, highly splashable across all 60+ archetypes, confirming efficient slot usage. (verified) |
Calculation
Weight profile: Primary role: Negation/Interaction (no secondary role blending). Intrinsic ≈ 60, Deck ≈ 57, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Hard negation against spell activation with destruction—clean, immediately effective interaction
- Zero brick risk and high splashability across 60+ archetypes at efficient copy counts
- Accessible staple in multiple formats (TCG, OCG, MasterDuel, DuelLinks) with no archetype lock-in
- Strong partner list (Solemn, MST, Monster Reborn) confirms generic accessibility and slot efficiency
Weaknesses
- No card advantage generation—trades 1 discard for 1 negation (−1 net resource on surface)
- Purely reactive; entirely dependent on opponent Spell activation for utility
- Single-use per turn with no recursion or recovery; does not build into follow-up turns
- Limited to Spell disruption only; cannot interact with Monster or Trap effects
Counters / choke points
- Opponent plays few Spell cards or shifts to monster-centric lines (reduces activation opportunities)
- Chaining negation (e.g., Solemn Judgment, effect negation) before Magic Jammer activates prevents the discard trade
- Spell negation counters that activate before Magic Jammer's trigger (timing races)
Best use
Going-second spell disruption and interaction. Decks: Black Luster Soldier, Jinzo, D/D/D, Generic staple in any Spell-heavy meta.
Evidence & gaps
- Verified: Card text: negates Spell activation and destroys it, costs 1 discard (from evidence.card.description); Appears in 155 decks with 1.4 avg copies, all main deck (from decks_evidence); Runs across 60+ distinct archetypes with no archetype-specific synergy (from archetypes list); Played in TCG, OCG, MasterDuel, DuelLinks formats (from card.formats); Hard negation against Spell activation is a strong, immediate interaction (from card mechanics)
- Observed: Generic staple status confirmed by top partners: Solemn Judgment (49%), MST (59.4%), Monster Reborn (47.7%) (from top_partners); Zero combos supplied; no appearance in recorded combo boards (from combos_evidence: appearances = 0); Consistently played at 1–3 copies across all 60+ archetypes (from copies_per_deck distribution)
- Inferred: Combo conversion is weak (no combos supplied; text is purely reactive with no multi-card synergy); Material utility is poor (trap card, no Level/Attribute/Race synergy, rarely used as material); Resilience is low (single-use per turn, no recovery, dependent on opponent Spell activation); Resource economy is −1 on surface but situationally even (discard cost vs. stopping Spell advantage); Deckbuilding efficiency is high (zero brick/lock, highly splashable, efficient slot use)
- Data gaps: No combo boards supplied—combo conversion is text-only inference (no as_starter, as_material, as_payoff data) No banlist status or limited/forbidden tokens—assumed 3 copies legal in all formats No usage statistics (StatisticsCard rows)—archetype inclusion % inferred from 155-deck sample only No metagame sample or Top-Card ranking—cannot assess current meta relevance Single guide mention (rule book section) provides no tactical guidance on card's in-game role






