Firewall Deck #772015 — Yu-Gi-Oh! OCG
55 Main, 15 Extra, incl. Mulcharmy Fuwalos x3, Mulcharmy Purulia x3, Pikari @Ignister x3. Created Oct 21, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/21/2026
Main Deck (55)
- Achichi @Ignister x2
- Knightmare Corruptor Iblee x1
- Mathmech Addition x1
- Mathmech Circular x1
- Micro Coder x1
- Mulcharmy Fuwalos x3
- Mulcharmy Purulia x3
- Nibiru, the Primal Being x2
- Pikari @Ignister x3
- Skull Meister x3
- Wizard @Ignister x1
- Cyberse Code Magician x1
- Ash Blossom & Joyous Spring x3
- Backup @Ignister x3
- Ghost Belle & Haunted Mansion x3
- Ghost Ogre & Snow Rabbit x3
- Mathmech Diameter x1
- Mathmech Sigma x1
- A.I. Connect x1
- A.I. Meet You x2
- Cynet Mining x2
- Ignister A.I.Land x1
- Mathmech Equation x1
- Salamangreat Sanctuary x1
- Triple Tactics Thrust x3
- Cynet Conflict x1
- Infinite Impermanence x3
- Mathmech Superfactorial x1
- Typhoon x3
Extra Deck (15)
- Cyberse Desavewurm x1
- Accesscode Talker x1
- Code Talker Inverted x1
- Cyberse Contract Witch x1
- Cyberse Wicckid x1
- Dark Infant @Ignister x1
- Decode Talker Heatsoul x1
- Firewall Dragon Darkfluid - Neo Tempest Terahertz x1
- G Golem Crystal Heart x1
- Link Spider x1
- Salamangreat Balelynx x1
- Transcode Talker x1
- Firewall Saber Dragon x1
- Primathmech Alembertian x1
- Primathmech Laplacian x1
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 35/100 (±8 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 53 |
| Going First | 50 |
| Going Second | 56 |
| Meta Power | provisional |
| Tournament Reliability | 40 |
- Primary strategy: Midrange
- Secondary strategies: Stun, Toolbox
- Format: ocg
Legality
Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).
Identity & game plan
- Win condition: Extra Deck Link and Synchro monsters (Firewall Dragon Darkfluid, Transcode Talker, Accesscode Talker, Decode Talker Heatsoul) reached through a Cyberse engine built on @Ignister and Code Talker starters; Mathmech Synchro/Xyz line (Primathmech Alembertian, Primathmech Laplacian) as a second route when the Ignister line is stopped
- Turn 1 (going first): Open a starter (Pikari @Ignister, Backup @Ignister, Mulcharmy draw engine), search an @Ignister or Mathmech piece, then build a Link or Xyz board while holding hand traps for the opponent's first interaction. Theoretical: no recorded boards exist to confirm this line.
- Turn 2 (going second): Use the six-card hand's hand traps (Ash Blossom, Ghost Belle, Ghost Ogre, Skull Meister, Nibiru, Infinite Impermanence, Ghost Ogre) to break the opponent's first combo, then convert the surviving Cyberse starter. Theoretical and structural only.
- Recovery: Rebuild from Cynet Mining, A.I. Connect and Cyberse searchers (Backup, Achichi, Firewall Saber Dragon, Mathmech Circular) into a fresh Link or Synchro summon; Mulcharmy Fuwalos and Purulia draw when the hand is near empty.
- After siding: Not assessable. The deck has zero Side Deck cards, so no post-side plan exists in this list.
Why it scores here
This is an Illegal list: Ash Blossom & Joyous Spring is run three times against an OCG limit of two, so the score is a capped, theoretical structural read and not a normal contextual score. The deck is a Cyberse hybrid that draws from @Ignister, Code Talker, Mathmech, Mulcharmy and A.I. pieces, and only 2.9% of its cards share the Firewall name (68 off-archetype copies), so the engine is spread across several sub-archetypes. Its strongest parts are the 17 hand traps and 16 negation effects, which give it interaction on both turns and a real going-second plan, and the Link-4/5 Extra Deck finishers give it closing power. Its weaknesses are the lack of a Side Deck, no recorded boards (so the floor, median and ceiling are text-only inference), and the many dead or conflicting cards in an opening hand. Popularity and archetype usage were not counted as power, and card scores were not averaged into the deck score.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 55 | Archetype core present in 21 copies (P open >=1 in 5 cards about 0.92 as a proxy); individual starters such as Pikari @Ignister are about 0.25 to open (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 45 | 17 hand traps, 14 singletons and many off-archetype Extra Deck pieces give a high dead-card risk in a 5 to 6 card hand (Inferred) |
| D3 | Combo Conversion & Ceiling | 55 | No parseable combos; ceiling read from card text only (Ignister, Mathmech Xyz/Synchro and Link-4/5 finishers) (Inferred) |
| D4 | Combo Floor & Median Output | 45 | No boards recorded, so the median and floor cannot be measured; the line depends on multi-step Link and Synchro summons (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 60 | Multiple hand traps and negates plus Cynet Conflict and Infinite Impermanence give layered interruption; several independent starters exist (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 55 | Searchers (15 text hits) and Cynet Mining/A.I. Connect/Mulcharmy draw cover recovery; no resource data (Inferred) |
| D7 | End-Board & Interaction Quality | 62 | 16 negation and 15 removal text hits, Ash/Ghost Ogre/Ghost Belle layering; no board observations (Inferred semantic) |
| D8 | Going-Second & Board-Breaking Power | 60 | Going-second hand traps (P >=1 hand trap in 6 cards about 0.90) plus Terahertz negation give board-breaking on the second turn (Inferred) |
| D9 | Offensive Pressure & Closing Power | 60 | Link-5 Terahertz at 3000 ATK and Link-4 Accesscode/Desavewurm at 2300 ATK give closing pressure (Verified stats, Inferred plan) |
| D10 | Main Deck Efficiency & Flexibility | 50 | 55 main cards inside the 40-60 size rule, but three copies of Ash Blossom are over the limit and 17 hand traps leave few flexible slots (Verified count, Inferred efficiency) |
| D11 | Extra Deck Efficiency & Coverage | 60 | 15 Extra Deck cards with 11 Link, 2 Xyz, 1 Synchro, 1 Fusion; several Extra Deck pieces are off-archetype, so access is uneven (Verified composition) |
| D12 | Side Deck Adaptability | 15 | Side Deck is empty (0 cards), so no post-side adaptation exists in this list (Verified) |
| D13 | Matchup Coverage & Format Fit | 45 | No tournament link and no metagame sample; archetype meta-share not available (Provisional) |
| D14 | Pilotability & Error Tolerance | 45 | Many hand traps, a multi-archetype engine and choices across Main and Extra make pilotage demanding (Inferred) |
How the score was computed
Strategy profile: Midrange. Structural ≈ 53, Going First ≈ 50, Going Second ≈ 56, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: banlist exposure (-8); engine conflicts (-4). Final formula: No reliable metagame, so Meta is Provisional: 0.80*Structural(53) + 0.20*TournamentReliability(40) + modifiers(-12) = 38.4, then capped to 35 because the list is Illegal (theoretical/structural-only per rubric)
Probability & combo summary
- Opening a starter: P(≥1) ≈ — · key two-card combo ≈ — · full-brick estimate ≈ — (all Inferred)
- Combo output: best PowerIndex —, median —, board-per-starter —
- Turn order: 0 going-first lines vs 0 going-second lines
Strengths
- 17 hand traps and 16 negation effects give interaction on both turns
- Multiple Link-4/5 and Synchro finishers (Firewall Dragon Darkfluid, Transcode Talker, Accesscode Talker) give closing pressure
- Searchers (15) and draw engines (Mulcharmy x2) support recovery after interruption
Weaknesses
- Illegal as submitted: Ash Blossom run at 3 copies against an OCG limit of 2
- No Side Deck, so there is no post-side adaptation
- Engine spread over five sub-archetypes; only 2.9% exact-name purity
- No recorded boards, so the combo floor and ceiling are unmeasured
Critical choke points
- Dependence on the @Ignister / Cyberse starters to open the Extra Deck line
- Ash Blossom over the copy limit makes the list unplayable in OCG until it is fixed
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | one copy of Ash Blossom & Joyous Spring | a legal card or nothing | Fix the copy-limit violation so the list is Legal; a legal list is required before a normal contextual score is possible |
| 2 | none | a Side Deck (up to 15 cards) | The deck has zero side cards, so it has no post-side plan for best-of-3 play |
| 3 | one or two off-archetype Extra Deck or hand pieces | core @Ignister or Mathmech pieces | Reduce engine conflicts so the starter route is more consistent |
Evidence & confidence
- Verified: Legality: 55 main, 15 extra, 0 side; Ash Blossom 3 copies vs 2 legal (Illegal); Card text and stats for all listed cards from the evidence; Archetype purity 2.9% and spread (68 off-archetype copies); Hand-trap count 17 and negation/removal text counts
- Inferred: Opening-hand starter and brick probabilities (hypergeometric proxies); Consistency read on the Cyberse engine; Going-second interaction value from the hand-trap count
- Provisional: Meta and matchup fit (no tournament or dated metagame sample); Tournament reliability (no win-rate or pilot data)
- Data gaps: no combos supplied: combo floor, median and ceiling are text-only inference no tournament link: archetype meta-share and per-pilot record absent no win-rate telemetry for going-first, going-second or matchups deck has no Side Deck cards, so post-side performance cannot be evaluated Meta Power is Provisional without a dated metagame sample
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