Bystial/Byssted Deck #769930 — Yu-Gi-Oh! OCG
57 Main, 15 Extra, incl. Fiendsmith Engraver x3, Imsety, Glory of Horus x3, Lightsworn Dragonling x3. Created Oct 20, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/20/2026
Main Deck (57)
- Bystial Baldrake x1
- Bystial Druiswurm x1
- Bystial Magnamhut x1
- Chaos Dragon Levianeer x1
- Chaos Nephthys x1
- Fairy Tail - Snow x1
- Fiendsmith Engraver x3
- Hapi, Guidance of Horus x1
- Imsety, Glory of Horus x3
- Judgment Dragon x1
- Keldo the Sacred Protector x1
- Lacrima the Crimson Tears x1
- Lightsworn Dragonling x3
- Mudora the Sword Oracle x1
- Santa Claws x1
- The Bystial Lubellion x1
- The Chaos Creator x1
- Wulf, Lightsworn Beast x2
- Felis, Lightsworn Archer x2
- Plaguespreader Zombie x1
- Weiss, Lightsworn Archfiend x3
- Branded Regained x1
- Chaos Space x1
- Charge of the Light Brigade x3
- Fiendsmith's Tract x3
- King's Sarcophagus x3
- Destructive Daruma Karma Cannon x3
- Eradicator Epidemic Virus x3
- Grinning Grave Virus x3
- The Black Goat Laughs x3
- Transaction Rollback x3
Extra Deck (15)
- Fiendsmith's Desirae x1
- A Bao A Qu, the Lightless Shadow x1
- Fiendsmith's Agnumday x1
- Fiendsmith's Requiem x1
- Fiendsmith's Sequence x1
- Gorgon of Zilofthonia x1
- S:P Little Knight x1
- Bystial Dis Pater x1
- Chaos Angel x1
- Minerva, the Athenian Lightsworn x1
- Swordsoul Supreme Sovereign - Chengying x1
- Dingirsu, the Orcust of the Evening Star x1
- Minerva, the Exalted Lightsworn x1
- The Zombie Vampire x1
- Wollow, Founder of the Drudge Dragons x1
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35± 8/ 100
Power Score
Structural
56
Reliability
51
Going First
60
Going Second
55
Deck — Deck Power Evaluation
Final Contextual Deck Power: 35/100 (±8 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 56.5 |
| Going First | 60 |
| Going Second | 55 |
| Meta Power | provisional |
| Tournament Reliability | 51 |
- Primary strategy: Midrange
- Secondary strategies: Combo
- Format: ocg
Legality
Main 57 / Extra 15 / Side 0 — status: Illegal. 2 violation(s).
Identity & game plan
- Win condition: End-board beatdown or Synchro/XYZ/Link pressure from Chaos Angel, Bystial Dis Pater, Judgment Dragon, The Zombie Vampire and Swordsoul Chengying (Inferred from card text); Fusion and Link follow-up through Fiendsmith's Desirae and Fiendsmith's Agnumday once the board is established (Inferred)
- Turn 1 (going first): Search with Fiendsmith Engraver, Fiendsmith's Tract or Charge of the Light Brigade, then convert into a Lightsworn or Bystial Special Summon line through GY-sent effects (Inferred from card text; no observed boards)
- Turn 2 (going second): Hold Bystial Druiswurm, Bystial Magnamhut or Keldo as on-field and in-GY interaction, then Special Summon a Dragon or Chaos threat over the opponent's board (Inferred)
- Recovery: Recur Lightsworn, Bystial and Chaos monsters from the GY through Weiss, Felis, Wulf, Chaos Nephthys and Lubellion-style GY effects (Inferred)
- After siding: Not evaluable: the deck runs zero side-deck cards, so there is no post-side plan (Verified)
Why it scores here
The deck has a real searcher base: 19 searcher-text copies give an Inferred 0.88 chance of at least one searcher in an opening 5-card hand, and it runs a deep GY-recursion network across Lightsworn, Bystial and Chaos. Its closing power is its strongest trait, with several 3000+ ATK Synchro, XYZ and Fusion finishers. Its weaknesses are structural: 72 of 72 non-exact archetype copies come from about 12 sub-archetypes, so the list has three to four competing engines and no shared core, and it has zero side-deck cards. No combo boards were recorded, so the floor and median are Inferred from text only. The deck is Illegal for two cards run over the copy limit, so the score is capped and reported as theoretical and structural-only. The score comes from the system: engine access, recursion, closing power and the lack of coherence and side plan. It does not come from the archetype's popularity, which only confirms the list is real, and it does not come from averaging the card scores.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 70 | P(at least 1 of 3 copies in opening 5) = 0.2447 per copy-limited starter; searcher-text group P(>=1) = 0.88; the core is only partly present (2 of 5 usage-core cards) (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 55 | 26 of 57 main-deck cards are non-monsters, several monsters need conditional Special Summons, and the deck runs no hand traps; brick and dead-hand risk is high (Inferred) |
| D3 | Combo Conversion & Ceiling | 62 | No observed boards; text-based ceiling via Bystial and Chaos banish-to-Special-Summon routes into 2500 to 3500 ATK threats (Inferred) |
| D4 | Combo Floor & Median Output | 40 | No recorded boards, so median output cannot be measured; expected output is lowered by the engine split across three archetypes (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 68 | Several GY-start and recursion effects (Weiss, Felis, Chaos Nephthys, Druiswurm, Baldrake) give independent routes after disruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 66 | Searcher density and GY recursion are strong; LP-based effects (Judgment Dragon, Chaos Dragon Levianeer) and Limited single copies add cost (Inferred from card text) |
| D7 | End-Board & Interaction Quality | 60 | Removal text on 28 cards and negate text on Dis Pater, Desirae and Gorgon; no hand traps and no floodgates (Inferred from card text and role flags) |
| D8 | Going-Second & Board-Breaking Power | 58 | Destructive Daruma, Keldo and Eradicator-style cards can break a board, but there are no hand traps and no board-wipe density (Inferred) |
| D9 | Offensive Pressure & Closing Power | 80 | Chaos Angel 3500, Bystial Dis Pater 3500, Zombie Vampire 3000, Chengying 3000 and Judgment Dragon 3000 give high end-board ATK (Verified stat) |
| D10 | Main Deck Efficiency & Flexibility | 32 | 57 main-deck cards at 31 distinct names, 17 single-copy slots and 0% exact-name archetype purity; compactness is poor (Verified composition) |
| D11 | Extra Deck Efficiency & Coverage | 55 | Extra Deck is 15 cards across Link (6), Synchro (4), XYZ (4), Fusion (1) with many single copies; coverage is broad but not flexible (Verified composition) |
| D12 | Side Deck Adaptability | 10 | Side deck is empty (0 of 15 slots), so there is no adaptability (Verified) |
| D13 | Matchup Coverage & Format Fit | 45 | No tournament or metagame sample exists; Bystial Magnamhut at 84.8% usage is the only format signal (Provisional) |
| D14 | Pilotability & Error Tolerance | 35 | Many conditional summons and multi-step GY and search chains; high decision load (Inferred) |
How the score was computed
Strategy profile: Midrange. Structural ≈ 56.5, Going First ≈ 60, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 51. Modifiers: banlist exposure (-6); engine conflicts (-4). Final formula: Illegal cap: 0.80*56.5 + 0.20*51 = 55.4 before modifiers; modifiers -10 give 45.4; capped to 35 because the deck is Illegal (theoretical, structural-only)
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.88 · 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
- Searcher density (19 copies) supports the opening-hand plan (Inferred)
- Many GY-recursion engines give resilience across three archetypes (Inferred)
- High closing ATK in the Extra Deck (Verified)
Weaknesses
- Illegal copy-limit violations on Fiendsmith Engraver and Fiendsmith's Tract (Verified)
- Zero side-deck cards (Verified)
- No shared archetype core: 0% exact-name purity across 12 sub-archetypes (Verified)
- No hand traps or floodgates (Verified)
Critical choke points
- Fiendsmith Engraver and Fiendsmith's Tract are the search backbone; at 3 copies each the deck is illegal, so the legal list has a choke point on fewer copies (Verified)
- Bystial Druiswurm and Bystial Magnamhut are the Bystial GY-summon engine and are Limited single copies (Verified)
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | 2x Fiendsmith Engraver and 2x Fiendsmith's Tract (cut to 1 copy each) | Droll & Lock Bird and Ash Blossom & Joyous Spring (both high archetype-usage cards, 60.9% and 56.5%), plus 2 slots of your choice | Restores legality; the Illegal status caps the score, so this is the first fix |
| 2 | Off-archetype or low-synergy one-of slots such as Santa Claws and Plaguespreader Zombie | Side deck of up to 15 cards | Side deck is empty and D12 is 10; a side plan is the largest single gap |
| 3 | One sub-archetype with its support cards (for example the Horus pieces, which need King's Sarcophagus) | Consolidate onto Lightsworn or Bystial, with the matching Extra Deck | Reduces the engine split and improves D10 and D14 |
Evidence & confidence
- Verified: Illegal copy-limit violations: Fiendsmith Engraver and Fiendsmith's Tract at 3 copies vs limit 1; Main 57, Extra 15, Side 0; within OCG size rules; Zero side-deck cards; Card text and stats for all listed cards; Usage stats: Bystial Magnamhut 84.8%, Bystial Druiswurm 60.9%
- Inferred: Hypergeometric starter and searcher probabilities; Engine conflicts and recursion routes from card text; Closing power from ATK values; Dimension scores D1 to D9 and D11 to D14
- Provisional: Meta Power (no dated metagame sample); D13 matchup and format fit
- 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 (going-first, going-second, matchup, brick rate) Meta Power is provisional without a dated metagame sample Deck is Illegal, so the score is capped and theoretical
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