LIGHT
4Mathmech Diameter
Archetype:
Mathmech
ATK:
1000
DEF:
1500
View:
7186
When this card is Normal Summoned: You can target 1 Level 4 Cyberse monster in your GY; Special Summon it, but it cannot activate its effects. A "Mathmech" monster that was Synchro or Xyz Summoned using this card on the field as material gains the following effect. ● Once per turn, during the turn this card was Special Summoned, when your opponent activates a card or effect (Quick Effect): You can negate that effect. You can only use each effect of "Mathmech Diameter" once per turn.
Mathmech Diameter — Power Evaluation
Final Score: 81 ± 4 · Confidence: High
- Intrinsic: 79 · Deck: 79 · Meta: provisional
- Primary role: Combo Enabler · Secondary: Extender, Material Body
Why it scores here
Mathmech Diameter scores well as a central enabler of powerful combo lines (avg power 89 across 3 recorded combos) that generate full turn-1 setups with 1–2 boss monsters and net +2 to +4 card advantage. Its accessibility is exceptional—run in 100% of Mathmech decks and splashed into 35 distinct archetypes—and the Synchro/Xyz negate provides hard once-per-turn disruption. Resource economy is solid but not exceptional (GY revival is net-zero without direct advantage), and the negate's one-turn duration limits resilience across multiple opponent turns. The card's cleanliness as a Level 4 Tuner material and splashability across Cyberse decks elevate its overall utility.
Axis scores
| Axis | Score | Evidence |
|---|---|---|
| Accessibility | 88 | Mathmech Diameter runs in 100% of Mathmech decks and 85.7% of Code Talker decks, with 1.25 average copies and strong archetype coverage enabling consistent access. (verified) |
| Combo & Conversion | 82 | Mathmech Diameter appears in 100% of 3 recorded high-power combos (power 76–99, avg 89), enabling 1-card combos generating 2 boss monsters and full turn-1 setups with net +2 to +4 card advantage. (verified) |
| Resource Economy | 68 | Mathmech Diameter revives 1 Level 4 Cyberse from GY without direct card advantage, but the Synchro/Xyz summons it enables generate net +2 to +4 advantage per combo example. (observed) |
| Effect & Interaction | 72 | The Synchro/Xyz negate is a hard once-per-turn Quick Effect negation of any card or effect, but is limited to one turn and requires the Synchro/Xyz to be summoned using Diameter as material. (verified) |
| Material Utility | 76 | Mathmech Diameter is a clean Level 4 Tuner Cyberse with no locks, actively enabling the Synchro/Xyz negate effect and fitting cleanly into both Synchro and Xyz material slots. (verified) |
| Resilience & Flexibility | 64 | Mathmech Diameter runs at 1–3 copies across 35 distinct archetypes with good redundancy, but the Synchro/Xyz negate is a one-turn effect with no persistence across multiple opponent turns. (verified) |
| Deck-Building Efficiency | 78 | Mathmech Diameter is a splashable Level 4 Tuner Cyberse run efficiently at 1–1.5 copies across 35 archetypes with no severe garnet risk or deck-building restrictions. (verified) |
Calculation
Weight profile: 0.7 Combo Enabler + 0.3 Extender. Intrinsic ≈ 79, Deck ≈ 79, Meta = provisional. Modifiers: Splashability bonus (2). Final formula: 0.40*Intrinsic + 0.60*Deck
Strengths
- Central to powerful Mathmech combos (100% appearance, avg power 89)
- Exceptional accessibility and splashability (100% inclusion in Mathmech, 35 distinct archetypes)
- Hard once-per-turn Quick Effect negate on Synchro/Xyz payoff provides reactive disruption
- Clean Tuner material with no self-locks or effect-blocking restrictions
- Multi-role utility as both Extender (GY revival) and Combo Enabler (Synchro/Xyz negate setup)
Weaknesses
- Negate effect is limited to one turn; cannot persist across multiple opponent turns
- GY revival effect requires a Level 4 Cyberse target in GY (potential bricking if GY is empty)
- Resource economy is neutral (GY revival is net-zero without direct card advantage generation)
- Average starter count in combos is 2.67 (not a true 1-card combo; requires multi-card setup)
- Limited resilience and recursion; no self-protection or multi-turn presence
Counters / choke points
- Hand traps interrupting setup (Ash Blossom & Joyous Spring, Ghost Ogre & Snow Rabbit) disrupt combo lines
- Negation of the Synchro/Xyz summon itself (e.g., Forbidden Droplet) prevents Diameter-granted negate
- Deck-out effects (e.g., Macro Cosmos) prevent GY revival, making Normal Summon effect inaccessible
Best use
Core Combo Enabler in Mathmech and Cyberse archetypes; enables turn-1 board setup and Synchro/Xyz negation. Splashable Material body in Tuner-focused decks.. Decks: Mathmech, Code Talker, @Ignister, Cyberse, Synchro, Xyz.
Evidence & gaps
- Verified: Mathmech Diameter is Level 4 LIGHT Cyberse Tuner with 1000 ATK / 1500 DEF; Normal Summon effect revives 1 Level 4 Cyberse from GY, preventing effect activation; Synchro/Xyz negate is once-per-turn Quick Effect active during summoning turn only; Appears in 100% of 3 recorded Mathmech combos with power range 76–99 (avg 89); 100% inclusion in Mathmech gameplay 6 decks; 85.7% in Code Talker gameplay 4
- Observed: Used as starter in 33.3% of recorded combos; left in end hand in 33.3%; Splashed into 35 distinct archetypes from 400 deck sample; Average 1.25 copies per deck with range 1–3; Average net card advantage in combo examples: +2.67 (range +2 to +4)
- Inferred: GY revival makes Diameter an Extender, continuing and lengthening combo lines; Synchro/Xyz negate enables reactive board disruption and opponent interaction; Splashable in any Cyberse or Tuner-based deck as generic Tuner material
- Data gaps: Only 3 combos in sample (small dataset for combo frequency inference) No banlist history or restricted-format testing provided Exact ruling on targeting effect-locked monsters for GY revival not tested No explicit search routes documented (Mathmech Circular high co-deck rate suggests search access)