Firewall Deck #767703 — Yu-Gi-Oh! OCG
55 Main, 15 Extra, incl. Mulcharmy Fuwalos x3, Mulcharmy Purulia x3, Nibiru, the Primal Being x3. Created Oct 20, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/20/2026
Main Deck (55)
- Achichi @Ignister x2
- Droll & Lock Bird x1
- Knightmare Corruptor Iblee x1
- Mathmech Addition x1
- Mathmech Circular x1
- Mathmech Multiplication x1
- Micro Coder x1
- Mulcharmy Fuwalos x3
- Mulcharmy Purulia x3
- Nibiru, the Primal Being x3
- Pikari @Ignister x3
- Wizard @Ignister x1
- PSY-Frame Driver x1
- Cyberse Code Magician x1
- Ash Blossom & Joyous Spring x3
- Backup @Ignister x3
- Effect Veiler x3
- Ghost Ogre & Snow Rabbit x2
- Mathmech Diameter x1
- Mathmech Sigma x1
- PSY-Framegear Gamma x1
- A.I. Connect x1
- A.I. Meet You x1
- Cynet Mining x2
- Harpie's Feather Duster x1
- Ignister A.I.Land x1
- Salamangreat Sanctuary x1
- Cynet Conflict x1
- Evenly Matched x3
- Infinite Impermanence x3
- Mathmech Superfactorial x1
- Solemn Accusation x2
- Solemn Judgment x1
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
- Salamangreat Balelynx x1
- Transcode Talker x1
- Enigmaster Packbit x1
- Firewall Saber Dragon x1
- Primathmech Alembertian x1
- Primathmech Laplacian x1
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 38/100 (±10 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 52 |
| Going First | 50 |
| Going Second | 55 |
| Meta Power | provisional |
| Tournament Reliability | 40 |
- Primary strategy: Toolbox
- Secondary strategies: Stun, Midrange
- Format: ocg
Legality
Main 55 / Extra 15 / Side 0 — status: Illegal. 1 violation(s).
Identity & game plan
- Win condition: Multi-engine boards: Ignister, Mathmech and Code Talker Link/Synchro/Xyz summons converting into 2000 to 3000 ATK boss monsters, with a Firewall Link-5 closer; Hand-trap and negation-driven disruption that stalls the opponent while the Extra Deck boards are built
- Turn 1 (going first): Open a searcher (Backup, Achichi, Cynet Mining or A.I. Connect) to reach an Ignister or Mathmech starter, then link or synchro into a boss; hold hand traps for the opponent's first answer
- Turn 2 (going second): Use the 19 hand traps (Ash Blossom, Infinite Impermanence, Effect Veiler, Nibiru, Droll and Lock Bird) to negate the opponent's starter, then rebuild from the hand
- Recovery: Recur Link-3 or lower Cyberse monsters from the GY through Transcode Talker and Decode Talker Heatsoul style effects, and use the 11 searchers to refill
- After siding: Not evaluable: the deck runs no Side Deck (side_count 0), so no post-side plan exists in this list
Why it scores here
This list is scored as a system and is capped low because it is Illegal: it runs 3 copies of Ash Blossom & Joyous Spring against a Semi-Limited limit of 2, so the normal Final Contextual score is theoretical only. Its consistency comes from a dense archetype-core group (18 copies, about 0.87 chance of at least one in a 5-card opening hand) and 11 searchers, but the 33 distinct Main Deck cards span at least five sub-engines (Ignister, Mathmech, Code Talker, Mulcharmy and PSY-Frame), with only 2 exact-name Firewall cards and 68 off-archetype copies, which raises brick and conflict risk. Interaction is the strongest area, with 17 negation-text and 16 removal-text cards and 19 hand traps giving about 0.93 chance of at least one hand trap in a going-second 6-card hand. No combo boards, tournament record, guides or Side Deck were supplied, so floor, median, ceiling and post-side scores are Inferred and carry wide bands. Popularity and archetype usage did not earn points, and no card scores were averaged into this result.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 55 | P(at least one archetype-core copy in 5-card hand) ≈ 0.87 across 18 core copies, but the core is split across several sub-archetypes (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 45 | 19 hand traps and 22 tech cards with level-0 spells and traps compete for space; brick and dead-card risk is high with 33 distinct Main Deck cards (Inferred) |
| D3 | Combo Conversion & Ceiling | 40 | No parseable combo boards; conversion ceiling is text-only inference from Link-3 and Link-5 summons and Synchro boss lines (Inferred) |
| D4 | Combo Floor & Median Output | 40 | No recorded boards, so median output cannot be measured and is estimated low-to-moderate from the multi-engine spread (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 60 | Dense hand-trap and negation text gives several independent responses to a single opposing play; recursion through Link GY effects adds route redundancy (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 60 | 11 searcher-text cards and recursion effects refill the hand and GY well over a long round; no resource-signature data (Inferred) |
| D7 | End-Board & Interaction Quality | 70 | 17 negation-text and 16 removal-text cards, with Ash Blossom, Infinite Impermanence and Ghost Ogre providing layered interaction (Inferred semantic read; flags are verified) |
| D8 | Going-Second & Board-Breaking Power | 65 | Hand-trap density gives about 0.93 chance of at least one hand trap in a going-second 6-card hand; no going-second combo split is available (Inferred) |
| D9 | Offensive Pressure & Closing Power | 55 | Link-5 Firewall Dragon Darkfluid - Neo Tempest Terahertz and 2900 to 3000 ATK bosses give a closing threat, but the Extra Deck is only partly built around them (Inferred) |
| D10 | Main Deck Efficiency & Flexibility | 45 | 55 Main Deck cards, legal size, but 68 of 70 copies sit outside the exact Firewall name and 33 distinct cards dilute the core (Verified composition, Inferred consequence) |
| D11 | Extra Deck Efficiency & Coverage | 60 | 15 Extra Deck slots spread across 10 Link, 2 Synchro, 2 Xyz and 1 Fusion, with several Link-2 and Link-3 access routes and a Link-5 finisher (Verified composition) |
| D12 | Side Deck Adaptability | 10 | No Side Deck is registered (side_count 0), so post-side adaptability is absent and scored as a flat floor (Verified gap) |
| D13 | Matchup Coverage & Format Fit | 50 | No tournament link and no archetype meta share are present, so format fit is provisional (Provisional) |
| D14 | Pilotability & Error Tolerance | 40 | Multiple engines, many hand-trap timing windows and Link material routing make the list hard to pilot consistently (Inferred) |
How the score was computed
Strategy profile: Toolbox. Structural ≈ 52, Going First ≈ 50, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: Illegal copy-limit violation (-10); Engine conflicts and archetype dilution (-2). Final formula: Illegal cap: 0.80*Structural(52) + 0.20*TournamentReliability(40) = 49.6, plus context modifiers (-12) = 37.6, rounded to 38; Meta Power provisional and excluded; theoretical/structural-only
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.87 · key two-card combo ≈ — · full-brick estimate ≈ 0.13 (all Inferred)
- Combo output: best PowerIndex —, median —, board-per-starter —
- Turn order: 0 going-first lines vs 0 going-second lines
Strengths
- Dense archetype-core group (18 copies) gives high starter access
- Strong interaction density with 19 hand traps and 33 negation or removal texts
- Searcher density (11) supports resource refill
- Legal Limited and Semi-Limited copy counts except the Ash Blossom overage
Weaknesses
- Illegal: Ash Blossom & Joyous Spring at 3 copies against a limit of 2
- No Side Deck, so no post-side plan
- Five sub-archetypes dilute engine coherence (2.9 percent exact-name purity)
- No parseable combo boards, so conversion and median are unmeasured
Critical choke points
- Legality: the list must drop one Ash Blossom copy before it can be played
- Starter access depends on the Ignister and Mathmech searchers, which are spread thin across sub-archetypes
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | One copy of Ash Blossom & Joyous Spring | A legal-count replacement or leave the slot empty | Restores legality; the deck cannot be played as built with three copies |
| 2 | Off-archetype tech cards that do not match the main engine | Core Ignister or Mathmech starters and searchers | Raises archetype purity and starter consistency without changing the interaction suite |
| 3 | None | A Side Deck of 5 to 15 cards | Side deck is empty, so post-side adaptability cannot be evaluated or improved |
Evidence & confidence
- Verified: Main Deck 55 cards, Extra Deck 15 cards, both inside size rules; Ash Blossom & Joyous Spring at 3 copies, legal limit 2 (over copy limit); Limited cards (Droll & Lock Bird, Harpie's Feather Duster, Mathmech Circular, PSY-Framegear Gamma, Solemn Judgment) each at 1 copy; Composition, archetype purity and role-tag counts
- Inferred: Starter access from the hypergeometric archetype-core estimate; Interaction quality from negation and removal text; Brick risk from the level-0 spell and trap count and tech density; Going-second hand-trap density (about 0.93)
- Provisional: Meta Power (no dated metagame sample); Format fit (no tournament link)
- Data gaps: no combos supplied, so combo floor, median and ceiling are text-only inference no tournament link, so archetype meta-share and per-pilot record are absent no Side Deck, so post-side adaptability is unmeasured no win-rate telemetry exists in YGOVN, so going-first and going-second splits are Inferred Meta Power is Provisional unless a dated metagame sample is supplied deck title is null, so the deck is identified only by its archetype and id
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