FIRE
4Mathmech Subtraction
Archetype:
Mathmech
ATK:
1000
DEF:
1000
View:
5886
You can target 1 face-up monster on the field; you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Cyberse monsters, also Special Summon this card from your hand (but it cannot attack this turn), and if you do, the targeted monster loses 1000 ATK until the end of this turn. You can only use this effect of "Mathmech Subtraction" once per turn.
Mathmech Subtraction — Power Evaluation
Final Score: 63 ± 5 · Confidence: Medium
- Intrinsic: 64 · Deck: 63 · Meta: provisional
- Primary role: Hand trap · Secondary: Removal/Negation, Material body
Why it scores here
Mathmech Subtraction scores as a strong archetype staple driven by high deck inclusion (92.3% in Mathmech competitive) and tight synergy with core pieces like Sigma (99.2% co-occurrence). However, the card's 1000 ATK reduction is often insufficient to remove threats, its Extra Deck lock lasts only one turn, and the absence of combo evidence prevents confirmation of independent value. The appeal is primarily defensive control and Extra Deck denial, making it reliable in its home archetype but not a universal powerhouse.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 75 | Hand-activatable from hand with no brick risk; 92.3% inclusion in competitive Mathmech and near-certain searchability via Sigma confirms strong in-deck access (verified) |
| Combo & Conversion | 35 | No independent combo extension or board building; acts as a utility disruptor rather than a combo piece generating advantage (inferred) |
| Resource Economy | 42 | Costs 1 card from hand and returns 1 body to field, yielding roughly even exchange with no refuel, recursion, or card advantage (verified) |
| Effect & Interaction | 62 | Extra Deck lock is powerful but limited to one turn; 1000 ATK reduction is modest against most threats and insufficient for removal in many matchups (verified) |
| Material Utility | 65 | Level-4 Cyberse body useful for Rank-4 XYZ and Link plays; clean typing and archetype synergy make it material-viable even when effect is negated (inferred) |
| Resilience & Flexibility | 50 | Once-per-turn clause limits reuse; ATK reduction and lock effects last only one turn; gains flexibility as potential material after activation (verified) |
| Deck-Building Efficiency | 78 | Runs at 1.1 copies per deck with minimal slot cost; splashable across 24 archetypes with strong inclusion in Mathmech, Code Talker, and @Ignister (observed) |
Calculation
Weight profile: 0.7 Hand trap + 0.3 Removal/Negation. Intrinsic ≈ 64, Deck ≈ 63, Meta = provisional. Modifiers: none. Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Extremely high deck inclusion (92.3% in Mathmech) signals strong archetype integration
- 99.2% co-occurrence with Mathmech Sigma confirms searchability and core-piece status
- Hand trap activation timing eliminates brick risk and allows flexible turn-by-turn play
- Extra Deck lock is powerful disruption against Link/XYZ/Fusion-heavy strategies
- Clean Level-4 Cyberse body provides material value for Rank-4 and Link plays
- Splashable across 24 archetypes with solid portability beyond Mathmech
Weaknesses
- 1000 ATK reduction is soft removal; many meta threats exceed this threshold and shrug off the penalty
- Extra Deck lock limited to one turn; impact is temporary and easily circumvented by next turn
- No combo evidence supplied; independent value unverified and likely minimal
- Cannot attack on activation turn, limiting board presence and tempo
- Mathmech-centric (48% of all sampled decks); generic value diminished despite 24-archetype presence
- Situational against hand trap-heavy formats or non-Extra Deck strategies
Counters / choke points
- Hand trap negation (Ash Blossom & Joyous Spring, Infinite Impermanence)
- Decks that minimally rely on Extra Deck Summoning
- Opponent's own hand traps and effect veilers neutralize activation timing
Best use
Defensive hand trap with Extra Deck denial and soft ATK reduction. Decks: Mathmech, Code Talker, @Ignister, Firewall.
Evidence & gaps
- Verified: Card text and mechanics as described: hand activation from hand, Extra Deck lock with Cyberse exception, 1000 ATK reduction, once-per-turn clause; Archetype: Mathmech (from card metadata); Appears in 400 of 400 sampled decks (100% inclusion rate in reference sample); 92.3% inclusion in Mathmech competitive (archetype_id 232); 99.2% co-occurrence with Mathmech Sigma (primary synergy partner); Average 1.1 copies per deck (distribution: 365×1, 32×2, 3×3); Featured as core card in 5 guides (all Mathmech/Code Talker context)
- Observed: Hand trap activation timing from effect text and deck context; Extra Deck lock effect reduces opponent play options (one turn only); 1000 ATK reduction is modest; insufficient against most high-ATK threats; Mathmech-centric (48% of sampled decks) but portability to 24 archetypes; No high tournament ranking or Top Card status despite 92.3% Mathmech inclusion; Consistent inclusion suggests necessity in archetype, not redundancy
- Inferred: Level-4 Cyberse body useful for Rank-4 XYZ and Link material plays; Minimal independent combo extension; requires external combo lines for value; Likely searchable via Mathmech Sigma (99.2% co-occurrence implies synergy); Extra Deck lock strong in Extra Deck-heavy matchups but weak against hand trap-focused or non-Extra Deck strategies; Material utility survives effect negation due to clean body type and level
- Data gaps: No combos supplied — combo conversion is text-only inference; cannot verify appearance rate, starter role, material role, payoff role, or average power index No banlist token — assumed unlimited (3 copies); actual legal status in each format unknown No Top Card ranking despite 92.3% Mathmech inclusion; unclear if meta-relevant at top-level competitive play Reference sample appears Cyberse/Mathmech-biased (100% inclusion in 400 decks vs. archetype popularity); cross-format generality uncertain