Crystron Deck #771542 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

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

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

Legality

Main 41 / Extra 14 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Extra Deck Xyz and Link beaters (Superdreadnought Rail Cannon Gustav Rocket, Flying Launcher, K9-X Ripper/M, K9-66X Jacks) converting a board of Crystron and K9 monsters; Crystron Synchro and Crystron Sulfador recursion grinding out card advantage over several turns
• Turn 1 (going first): Search or summon a Crystron or K9 starter with Crystron Inclusion, Night Train Blue Traveler or K9-66b Lantern, then extend into an Xyz with Crystron Eleskeletus, Crystron Tristaros or Clockwork Knight
• Turn 2 (going second): Use Forbidden Droplet or Forbidden Crown to remove the opponent's interaction on a board, then rebuild with Mulcharmy Fuwalos draws and Crystron recursion
• Recovery: Recover through Crystron Sulfador and Crystron Sulfefnir recursion from the Graveyard and the K9 Quick-Play Spell set-back from K9-X Forced Release
• After siding: Not supported: the deck runs no Side Deck, so there is no post-side plan in the evidence

Why it scores here

The deck is scored as a system, not as an average of its cards. Its Crystron and K9 core is reliably reachable: the archetype core group shows about a 97% chance of at least one core card in a 5-card opening hand, and the searcher group about 91% (Inferred from the hypergeometric draw table). It converts into real pressure through the Extra Deck, where Gustav Rocket, Flying Launcher and Ripper/M give high ATK and piercing or negation text, and it keeps some interaction through Forbidden Droplet, Forbidden Crown and seven negation-text cards. Those strengths are offset by a Legality failure (K9-17 Izuna is over its Semi-Limited copy limit), by a missing Side Deck, by 22% exact-archetype purity spread across K9, Train, Forbidden and Mulcharmy, and by no recorded boards or tournament data. Popularity and archetype usage were not credited as power, and the deck is capped low because it is Illegal.

Dimension scores

How the score was computed

Strategy profile: Midrange primary with Toolbox weight disclosed as secondary but not blended into the numbers. Structural ≈ 51, Going First ≈ 52, Going Second ≈ 42, Meta = provisional, Tournament Reliability ≈ 38. Modifiers: Banlist exposure (over copy limit) (-6); No side deck (-4); Unresolved passcode (-2); Illegal cap (-6). Final formula: Structural 51 x 0.80 + TournamentReliability 38 x 0.20 = 48 (Meta provisional); modifiers -12 gives 36; Illegal cap applied gives 30 (theoretical / structural only)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.97 · key two-card combo ≈ — · full-brick estimate ≈ 0.03 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Core Crystron/K9 engine is very likely to be accessible in the opening hand
• High-ATK Extra Deck closers with piercing or negation text
• Multiple searchers and recursion routes give card economy across turns

Weaknesses

• Illegal list: K9-17 Izuna is over its Semi-Limited copy limit
• No Side Deck, so no adaptation for best-of-3
• Low exact-archetype purity (22%) spreads the engine across several sub-archetypes
• No hand traps or floodgates to stop an opponent's going-second turn

Critical choke points

• The K9-17 Izuna copy limit must be fixed before the list can be played legally
• Forbidden Droplet and Forbidden Crown are the only answers to a board on the going-second turn

Recommended changes

Evidence & confidence

• Verified: Legality status is Illegal: K9-17 Izuna is run 3 copies against a Semi-Limited limit of 2; Main 41 and Extra 14 are within the OCG size rules; Exact-archetype purity is 21.8%; Side Deck is 0 cards; Gustav Rocket ATK 5000, Flying Launcher ATK 3800, Ripper/M ATK 3100
• Inferred: Archetype core reachability of about 0.97 in a 5-card opening hand (hypergeometric); Interaction density from 7 negation and 17 removal text cards; Going-second hand quality is weak because there are no hand traps
• Provisional: Meta power is null; no dated metagame sample; Matchup fit and the tournament reliability figure rest on missing data
• Data gaps: No combos supplied, so the floor, median and ceiling are text-only inference No tournament link, so archetype meta-share and pilot match record are absent One CardIDList passcode (10443957) did not resolve and is counted as main No win-rate telemetry for going-first, going-second, matchup or brick rates Meta power is provisional unless a dated metagame sample is supplied