Firewall Mathmech
TCG · Mathmech · Tournament Meta Decks · 2023-08-30 · Source
Featured card
Mathmech Sigma
One of the most-played Mathmech cards this deck runs.
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- Harpie's Feather Duster is Forbidden
- 34 cards first released after Goat's card pool closed (2005-08-20): Accesscode Talker, Archfiend Eccentrick, Ash Blossom & Joyous Spring, Book of Eclipse, Called by the Grave, Cosmic Cyclone, Cyberse Wicckid, D.D. Crow, Decode Talker Heatsoul, Droll & Lock Bird, Effect Veiler, Firewall Defenser, Firewall Guardian, G Golem Crystal Heart, Ghost Belle & Haunted Mansion, Infinite Impermanence, Linguriboh, Link Spider, Mathmech Addition, Mathmech Circular, Mathmech Diameter, Mathmech Equation, Mathmech Sigma, Mathmech Subtraction, Mathmech Superfactorial, Nibiru, the Primal Being, Parallel eXceed, Primathmech Alembertian, Primathmech Laplacian, Salamangreat Almiraj, Small World, Splash Mage, Transcode Talker, Update Jammer
- the deck costs 339 points, and Genesys allows 100
Checked against the Goat format Forbidden & Limited list (April 2005) as of 8 November 2026 and its card pool (no card first released after 20 August 2005), with the sizes and copy limits of a TCG deck.
339 of 100 points, against the Genesys points list as of 15 October 2026, with the sizes and copy limits of a TCG deck.
Not checked: the TCG card pool (a card released only in the OCG).
Buy this deck — all 36 cards70 copies · about $50.11, main, extra and side deck
Main Deck
40 cards| Card | Type | In deck | Each |
|---|---|---|---|
 Ash Blossom & Joyous Spring Not in this format18 pts each | Tuner | ×3 | $0.40 |
 Droll & Lock Bird Not in this format20 pts each | Effect | ×3 | $0.30 |
 Effect Veiler Not in this format7 pts each | Tuner | ×3 | $0.27 |
 Firewall Defenser Not in this format | Effect | ×3 | $9.54 |
 Firewall Guardian Not in this format | Effect | ×1 | $0.31 |
 Mathmech Addition Not in this format | Effect | ×2 | $0.19 |
 Mathmech Circular Not in this format15 pts each | Effect | ×3 | $0.25 |
 Mathmech Diameter Not in this format | Tuner | ×3 | $0.33 |
 Mathmech Sigma Not in this format5 pts each | Tuner | ×2 | $0.27 |
 Mathmech Subtraction Not in this format | Effect | ×2 | $0.76 |
 Nibiru, the Primal Being Not in this format8 pts each | Effect | ×3 | $0.23 |
 Parallel eXceed Not in this format | Effect | ×3 | $0.41 |
 Called by the Grave Not in this format20 pts each | Spell | ×1 | $0.14 |
 Mathmech Equation Not in this format | Spell | ×1 | $0.16 |
 Small World Not in this format | Spell | ×3 | $0.19 |
 Infinite Impermanence Not in this format8 pts each | Trap | ×3 | $0.45 |
 Mathmech Superfactorial Not in this format | Trap | ×1 | $0.17 |
Extra Deck
15 cards| Card | Type | In deck | Each |
|---|---|---|---|
 Accesscode Talker Not in this format | Link | ×2 | $0.23 |
 Cyberse Wicckid Not in this format | Link | ×1 | $0.83 |
 Decode Talker Heatsoul Not in this format | Link | ×1 | $0.15 |
 G Golem Crystal Heart Not in this format | Link | ×1 | $0.21 |
 Linguriboh Not in this format | Link | ×1 | $0.12 |
 Link Spider Not in this format | Link | ×1 | $0.27 |
 Primathmech Alembertian Not in this format20 pts each | Xyz | ×2 | $0.49 |
 Primathmech Laplacian Not in this format | Xyz | ×1 | $0.24 |
 Salamangreat Almiraj Not in this format | Link | ×1 | $0.15 |
 Splash Mage Not in this format | Link | ×2 | $0.10 |
 Transcode Talker Not in this format | Link | ×1 | $0.42 |
 Update Jammer Not in this format | Link | ×1 | $0.10 |
Side Deck
15 cards · not counted toward completion| Card | Type | In deck | Each |
|---|---|---|---|
 Archfiend Eccentrick Not in this format | Pendulum | ×1 | $0.10 |
 D.D. Crow Not in this format2 pts each | Effect | ×2 | $0.75 |
 Ghost Belle & Haunted Mansion Not in this format6 pts each | Tuner | ×2 | $0.84 |
 Book of Eclipse Not in this format4 pts each | Spell | ×3 | $0.24 |
 Book of Moon1 pt each | Spell | ×3 | $0.04 |
 Cosmic Cyclone Not in this format1 pt each | Spell | ×3 | $0.20 |
 Harpie's Feather Duster Forbidden7 pts each | Spell | ×1 | $0.93 |