Bystial/Byssted Deck #770231 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±10 · Confidence: Medium)

• Primary strategy: Midrange
• Secondary strategies: Toolbox, Stun
• Format: ocg

Legality

Main 55 / Extra 15 / Side 0 — status: Illegal. 4 violation(s).

Identity & game plan

• Win condition: Extra-Deck Xyz/Link boards from the Vanquish Soul and K9 pools (Vanquish Soul Caesar Valius, K9-X "Werewolf", Super Starslayer TY-PHON, Divine Arsenal AA-ZEUS) backed by hand-trap protection.; Bystial Dragon beatsticks (Bystial Druiswurm and Bystial Magnamhut, one copy each) that Special Summon from hand by banishing a LIGHT/DARK monster from either GY.
• Turn 1 (going first): Search and Special Summon Vanquish Soul monsters (Vanquish Soul, Start!, Dr. Mad Love, Heavy Borger, Pantera) to reach an Xyz or Link Summon, using Ghost Belle, Droll & Lock Bird and Ash Blossom as protection.
• Turn 2 (going second): Hand traps (Ash Blossom, Ghost Belle, Nibiru, Infinite Impermanence, Droll & Lock Bird) stop the opponent's first board, then Xyz and Link Summon to take over.
• Recovery: Rebuild through the Xyz/Link recursion of Vanquish Soul Rocks and Rock of the Vanquisher, plus the GY Special Summon from Ghost Belle and Bystial Druiswurm.
• After siding: None: the deck has no Side Deck (side_count 0), so there is no evidenced post-side plan.

Why it scores here

This list is Illegal in OCG: three copies each of Ash Blossom & Joyous Spring, Vanquish Soul Razen and K9-17 Izuna exceed their Semi-Limited/Limited caps, and Triple Tactics Talent (Forbidden) is run. The deck is capped at 30 as a theoretical, structural-only read and does not receive a normal Final Contextual score. The structural read (about 54) comes from the system: 13 hand traps and about 9 negation texts give strong going-second interaction, and 16 searchers with an 83% chance of at least one in a 5-card hand give reasonable access to the Vanquish Soul and K9 engines. Those strengths are offset by 17 non-monster slots in a 55-card main, a fragmented engine that mixes Vanquish Soul, K9 and Mulcharmy, and no Side Deck. Popularity did not earn points: the archetype label is Bystial/Byssted, but only two cards carry that name, and the score did not average any individual card scores.

Dimension scores

How the score was computed

Strategy profile: primary Midrange; secondary Toolbox folded in as a note only, not blended. Structural ≈ 54, Going First ≈ 52, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist and copy-limit violations (-10); no side deck (-2). Final formula: Meta provisional: 0.80*Structural(54) + 0.20*TournamentReliability(45) = 52.2; modifiers -12 gives 40; Illegal cap applied to 30 (theoretical/structural-only)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.25 · 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

• 13 hand traps and about 9 negation texts give strong going-second interaction
• 16 searchers with about 83% chance of at least one in a 5-card hand
• Extra-Deck bosses with high ATK (K9-X Werewolf 3300, Caesar Valius 3000, ZEUS 3000)

Weaknesses

• Illegal in OCG: four copy-limit or banlist violations
• No side deck, so no post-side plan
• Archetype label Bystial/Byssted is not reflected in the list (two cards carry the name)
• 17 non-monster slots in a 55-card main, with several one-of tech cards

Critical choke points

• Single-copy Vanquish Soul hand reveals and K9 Xyz chains need specific resources to continue
• Going-first starts rely on a searcher chain with no evidenced backup route

Recommended changes

Evidence & confidence

• Verified: Main 55 / Extra 15 / Side 0 counts are within OCG size rules; Four copy-limit or banlist violations (Ash Blossom, Vanquish Soul Razen, K9-17 Izuna, Triple Tactics Talent); Card text and banlist statuses from the evidence pack; Usage stats: five core cards present at 100%; Copy histogram 1:17, 2:1, 3:12
• Inferred: Hypergeometric starter and searcher probabilities; Hand-trap going-second strength from text and probability; Structural dimension scores and final cap reasoning
• Provisional: Meta Power (no dated sample); Format fit (D13)
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot match record absent No win-rate telemetry; going-first and going-second splits are Inferred only No side deck, so post-side plan cannot be evaluated Meta Power is Provisional unless a dated metagame sample is supplied