Firewall Deck #768127 — Yu-Gi-Oh! OCG
51 Main, 19 Extra, incl. Achichi @Ignister x3, Mulcharmy Fuwalos x3, Pikari @Ignister x3. Created Oct 20, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/20/2026
Main Deck (51)
- Achichi @Ignister x3
- Danmari @Ignister x1
- Doshin @Ignister x1
- Droll & Lock Bird x1
- Gatchiri @Ignister x1
- Hiyari @Ignister x1
- Mathmech Circular x1
- Mathmech Subtraction x1
- Maxx "C" x1
- Micro Coder x1
- Mulcharmy Fuwalos x3
- Pikari @Ignister x3
- Wizard @Ignister x1
- Cyberse Code Magician x1
- Ash Blossom & Joyous Spring x2
- Backup @Ignister x2
- Bururu @Ignister x1
- Mathmech Sigma x1
- A.I. Connect x1
- A.I. Love Fusion x1
- A.I. Meet You x1
- Crossout Designator x1
- Cynet Mining x3
- FA.I.ghting Spirit x1
- Harpie's Feather Duster x1
- Ignister A.I.Land x1
- Mathmech Equation x1
- Power Bond x3
- Super Polymerization x2
- TA.I. Strike x1
- Ultimate Sky x2
- Cynet Conflict x1
- Infinite Impermanence x3
- Red Reboot x1
- Solemn Judgment x1
Extra Deck (19)
- Cyberse Desavewurm x1
- Earth Golem @Ignister x1
- Allied Code Talker @Ignister x1
- Cyberse Contract Witch x1
- Cyberse Wicckid x1
- Dark Infant @Ignister x2
- Dark Templar @Ignister x1
- Firewall Dragon x1
- Firewall Dragon Darkfluid x1
- Firewall Dragon Singularity x1
- G Golem Crystal Heart x1
- Linguriboh x1
- Link Decoder x1
- Transcode Talker x1
- Firewall Saber Dragon x1
- Wind Pegasus @Ignister x1
- Light Dragon @Ignister x1
- Primathmech Alembertian x1
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 45/100 (±12 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 58 |
| Going First | 60 |
| Going Second | 64 |
| Meta Power | provisional |
| Tournament Reliability | 50 |
- Primary strategy: Combo
- Secondary strategies: Toolbox
- Format: ocg
Legality
Main 51 / Extra 19 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).
Identity & game plan
- Win condition: Link, Synchro, Xyz and Fusion boards built from the @Ignister and Cyberse engine, closing through Firewall Dragon Singularity, Light Dragon @Ignister and Allied Code Talker @Ignister (Inferred from card text); Toolbox interaction (Ash Blossom, Infinite Impermanence, Solemn Judgment, Maxx C) keeping the engine online (Inferred)
- Turn 1 (going first): Open on Cyberse starters (Achichi, Pikari, Backup, Hiyari, Doshin) and search an @Ignister or A.I. spell/trap, then Link or Synchro summon toward a Link-3 or higher monster (Inferred)
- Turn 2 (going second): Hold Ash Blossom, Droll and Lock Bird, Maxx C or Infinite Impermanence to slow the opponent, then rebuild the engine from the GY with Pikari, Hiyari or Mathmech Circular (Inferred)
- Recovery: Recursion from the GY through Achichi, Pikari, Backup and Mathmech Equation, which the deck can repeat if the first board is stopped (Inferred)
- After siding: Not applicable: the deck has no Side Deck, so there is no post-side plan (Verified)
Why it scores here
The deck has a real engine: the 19-copy @Ignister core gives about a 91% chance of at least one core card in a going-first opening hand (Inferred hypergeometric), so it usually opens a functional starter. Its interaction layer is dense, with 8 hand traps and 13 negation-text cards, which makes it hard to stop once it reaches the board, and the going-second hand-trap odds of about 66% help it challenge a set-up. Conversion and median output are not measured, since the deck has no recorded boards, so those scores rest on text reading and are Inferred. The list is scored as a system, not as an average of card scores, and it is not rewarded for the popularity of the Firewall and @Ignister names. The score is held down because the list is illegal in OCG: Link Decoder is Forbidden and the Extra Deck holds 19 cards against a limit of 15, so the result is theoretical and structural only, and the 14 dimensions carry low confidence.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 70 | P(at least one core card in a 5-card opening hand) = 0.914 across 19 core copies; 2-card Cyberse starter bootstrap (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 55 | 13 tech and 8 hand-trap slots compete with the engine, and 25 distinct 1-copy cards raise the dead-card risk (Inferred) |
| D3 | Combo Conversion & Ceiling | 60 | No recorded boards; ceiling read from text to Link-3 and higher summons with Firewall Dragon Singularity and Light Dragon @Ignister as payoffs (Inferred) |
| D4 | Combo Floor & Median Output | 45 | No recorded boards; median output cannot be measured, so the score is a conservative text-only estimate (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 62 | Several independent starters (Achichi, Pikari, Backup, Hiyari) and GY recursion give more than one route after disruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 60 | 13 searcher-text cards and GY recursion through Achichi and Pikari, but few draw effects (Inferred) |
| D7 | End-Board & Interaction Quality | 75 | 8 hand traps and 13 negation-text cards, with several layered negates (Ash Blossom x2, Solemn Judgment, Red Reboot, Infinite Impermanence) (Verified card text, Inferred density) |
| D8 | Going-Second & Board-Breaking Power | 70 | Going-second hand-trap odds of about 66% (Inferred hypergeometric); Droll and Lock Bird and Maxx C add extra disruption (Verified text) |
| D9 | Offensive Pressure & Closing Power | 65 | Extra-Deck boss options such as Firewall Dragon Singularity at 3500 ATK and Light Dragon @Ignister at 2300 ATK (Verified stats, Inferred closing) |
| D10 | Main Deck Efficiency & Flexibility | 45 | 51 Main Deck cards inside the 40 to 60 range, but 25 one-off slots and 68 off-archetype copies lower the coherence; exact-name purity is 2.9% (Verified composition) |
| D11 | Extra Deck Efficiency & Coverage | 40 | 19 Extra-Deck cards exceed the OCG limit of 15, so the deck is illegal on this count; the link, synchro and xyz mix is broad (Verified legality) |
| D12 | Side Deck Adaptability | 10 | No Side Deck is run (side 0), so there is no post-side adaptability (Verified) |
| D13 | Matchup Coverage & Format Fit | 40 | No tournament link or dated meta sample; Firewall archetype share unknown (Provisional) |
| D14 | Pilotability & Error Tolerance | 40 | Multi-step link and synchro lines across several sub-archetypes need a high error tolerance (Inferred) |
How the score was computed
Strategy profile: Combo primary, Toolbox secondary (approximately 80/20 by judgment, not a formal blend). Structural ≈ 58, Going First ≈ 60, Going Second ≈ 64, Meta = provisional, Tournament Reliability ≈ 50. Modifiers: banlist exposure (-6); extra deck over size limit (-4); unverifiable combo evidence (-1). Final formula: Illegal deck, theoretical only: 0.80*Structural(58) + 0.20*TournamentReliability(50) = 56.4; then context modifiers total -11 gives 45. Meta Power provisional (null).
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.91 · key two-card combo ≈ — · full-brick estimate ≈ 0.09 (all Inferred)
- Combo output: best PowerIndex —, median —, board-per-starter —
- Turn order: 0 going-first lines vs 0 going-second lines
Strengths
- Dense interaction: 8 hand traps and 13 negation-text cards
- High starter access from the 19-copy @Ignister core
- Extra-Deck boss options with high ATK
- Going-second hand-trap odds around 66%
Weaknesses
- Illegal in OCG: Link Decoder is Forbidden and the Extra Deck is over the limit
- Low archetype purity: 2.9% exact-name, many sub-archetypes
- No Side Deck
- Many one-off tech and interaction slots
Critical choke points
- Link Decoder must be removed before the deck can be played legally
- Extra Deck must be cut from 19 to 15 or fewer cards
- The Ignister engine depends on Cyberse starters being live in hand
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Link Decoder (Forbidden in OCG, 1 copy) | A legal Cyberse Link-1 or a non-Forbidden Link monster | Removes the only Forbidden card and the illegal-copy violation |
| 2 | 4 Extra-Deck cards (19 down to 15) | None (the Main Deck stays at 51 cards) | Restores the OCG Extra Deck limit and makes the list legal to play |
Evidence & confidence
- Verified: Legality: Link Decoder is Forbidden and the Extra Deck has 19 cards (limit 15); Copy limits: Ash Blossom and Super Polymerization 2 copies (Semi-Limited), Maxx C, Solemn Judgment, Red Reboot, Crossout Designator, Harpie's Feather Duster and Droll and Lock Bird 1 copy (Limited); Card text and stats for all listed cards; Archetype purity 2.9%
- Inferred: Engine accessibility: 0.914 at least one core card in a 5-card opening hand; Interaction density and going-second hand-trap odds of about 66%; Ceiling and median scores from card text only; Primary strategy Combo with Toolbox secondary
- Provisional: Meta Power (null, no dated metagame sample); Matchup and format fit (D13)
- Data gaps: no combos supplied: combo floor, median and ceiling are text-only inference no tournament link: archetype meta-share and match record absent no win-rate telemetry in YGOVN for this deck Meta Power provisional: no dated metagame sample Deck has no Side Deck, so post-side performance cannot be assessed
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