Bystial/Byssted Deck #772912 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 25/100 (±10 · Confidence: Low)

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

Legality

Main 40 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Synchro Summon large Synchro boss monsters (Centur-Ion Auxila, Legatia, Bystial Dis Pater, Red Supernova) off a Centur-Ion / Bystial board, with hand traps protecting the first summon; Bystial Druiswurm and Magnamhut recursion of banished LIGHT/DARK monsters into follow-up Dragon boards
• Turn 1 (going first): Open with a Centur-Ion or Bystial starter, use Centur-Ion Bonds / Emblema Oath style Continuous Trap placement to reach a Level 4 tuner plus non-Tuner and Synchro into a 3000+ ATK boss; hand traps are held for the opponent's first interaction
• Turn 2 (going second): Use Ash Blossom, Ghost Ogre and Infinite Impermanence to answer the opponent's starter, then rebuild through Mulcharmy Fuwalos and Centur-Ion draw/search effects; Synchro through a surviving monster
• Recovery: Searchers (Centur-Ion Primera, Gargoyle II, Auxila, Magnamhut) and Mulcharmy draw effects refill the hand after a hand trap or a single starter is used
• After siding: Not evaluable: the deck has no Side Deck (0 cards), so no post-side plan exists

Why it scores here

The deck is Illegal in OCG: Ash Blossom & Joyous Spring is run 3 times against a limit of 2, and The Bystial Lubellion is run 3 times against a limit of 1, so the score is capped and the evaluation is theoretical and structural only. Its engine is split across two sub-archetypes (Centur-Ion 20 cards, Bystial 7, plus Mulcharmy, Chaos, Tenyi and Snake-Eye/Eyes Dragon ends with no Snake-Eye material present), so the Extra Deck is only partly coherent. The strongest structural part is interaction density: 13 hand-trap/tech cards and 9 removal-text cards protect the first Synchro, and the 0.92 going-second probability of at least one hand trap in the 6-card hand is an Inferred estimate. Starter access is moderate: P(at least one archetype core card in a 5-card opening hand) is about 0.74 (Inferred), but there is no recorded combo data, so floor, median and ceiling are text-only inference. The deck has no Side Deck, which removes any post-side adaptability, and popularity signals (usage stats show 100% core-card presence) confirm the list is real and accessible but did not earn points. No card scores were averaged into the deck score.

Dimension scores

How the score was computed

Strategy profile: Midrange 100% (Stun secondary noted, not blended in the numeric weights). Structural ≈ 47, Going First ≈ 50, Going Second ≈ 44, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: banlist exposure (-8); no side deck (-2); engine conflict (0); illegal cap (-13). Final formula: Illegal deck: raw 0.80*Structural(47) + 0.20*TournamentReliability(40) + modifiers(-10) = 38; capped to 25 as theoretical/structural-only (Meta provisional, null)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.74 · key two-card combo ≈ — · full-brick estimate ≈ 0.26 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Dense interaction: 13 hand-trap cards plus 6 negation-text and 9 removal-text effects
• Multiple 3000+ ATK Synchro bosses with strong end-board text
• Deep Synchro Extra Deck with 13 Synchro options for flexibility

Weaknesses

• Illegal in OCG: 2 cards over copy limit
• No Side Deck (0 cards)
• Two sub-archetypes plus off-theme Extra Deck cards (Snake-Eye Fusion without Snake-Eye material) dilute engine coherence
• No combo, tournament or win-rate data to confirm the engine works in practice

Critical choke points

• Starter access depends on the 9 archetype core cards; about 26% of opening hands have none (Inferred)
• Heavy reliance on hand traps (13) means one missed hand trap leaves the first Synchro unprotected
• Lubellion and Ash Blossom copy counts must be cut before the deck can be played in OCG

Recommended changes

Evidence & confidence

• Verified: Legality: Lubellion 3 copies vs limit 1; Ash Blossom 3 copies vs limit 2 (OCG); Main 40 and Extra 15 are within size rules; Side 0; Composition: 13 Synchro Extra Deck cards, 13 hand traps, 9 removal-text cards; Usage stats: all 5 core cards present (100%); Archetype purity 0% exact name; 55 off-archetype copies
• Observed: Usage stats: Magnamhut 85.6% inclusion, Droll 65.8%, Ash 64.4%, Mulcharmy 62.4%, Druiswurm 59.9%
• Inferred: Opening-hand starter access about 0.74 (archetype core group); Going-second hand-trap access about 0.92; Interaction quality and recovery reads from card text; Floor, median and ceiling estimated from text (no combo data)
• Provisional: Meta / format fit (D13) and Meta Power: no dated meta sample; archetype meta-share absent
• Data gaps: no combos supplied: combo floor/median/ceiling is text-only inference no tournament link: archetype meta-share and per-pilot match record absent no win-rate telemetry exists in YGOVN (going-first/second, matchup, brick/starter rates): these signals are Inferred or Unknown no Side Deck in export (0 cards): post-side plan cannot be assessed Meta Power is Provisional unless a dated metagame sample is supplied