Crystal Beast Deck #753355 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 39/100 (±8 · Confidence: Low)

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

Legality

Main 55 / Extra 15 / Side 0 — status: Illegal. 5 violation(s).

Identity & game plan

• Win condition: Extra Deck 4000-ATK LIGHT Dragons (Rainbow Dragon, Rainbow Overdragon, Ultimate Crystal Rainbow Dragon Overdrive) enabled by Crystal Beast monsters on field and in GY (text read, Inferred); Crystal Beast Rainbow Dragon 3000 ATK pressure plus Link monsters (Underworld Goddess, Knightmare Unicorn, Accesscode Talker) (text read, Inferred)
• Turn 1 (going first): Crystal Bond or Rainbow Bridge to search a Crystal Beast monster and place a second one face-up in the Spell and Trap Zone, then Crystal Beast Ruby Carbuncle or Sapphire Pegasus to chain Crystal Beast placements toward a 7-name Rainbow Dragon Special Summon (text read, Inferred; no line data)
• Turn 2 (going second): Dark Ruler No More, Solemn Judgment, and Crystal Miracle to answer the opponent board, then Rainbow Dragon or Crystal Beast Rainbow Dragon for board break (text read, Inferred)
• Recovery: Crystal Beast monsters destroyed in the Monster Zone place themselves face-up in the Spell and Trap Zone as Continuous Spells; Crystal Conclave can return them to hand for a re-summon (text read, Inferred)
• After siding: No side deck (0 side cards), so there is no post-side plan.

Why it scores here

This list is illegal in OCG as built: five Forbidden cards are run (Cross-Sheep, Dimension Shifter, Number 41, Number 60, Saryuja Skull Dread), so the score is capped and labeled theoretical and structural only. The structural read rests on the evidence pack: the core Crystal Beast group is open in at least one of five opening cards about 76% of the time (hypergeometric, Inferred), and 19 searcher-text cards give a reasonable chance of a second starter. The ceiling comes from text, not recorded boards: the 4000-ATK LIGHT Dragons need seven different Crystal Beast names, and no combo data exists to set a floor or median, so D3 and D4 are Inferred and low-confidence. Consistency is held back by 44 off-archetype copies, only 26 exact-name Crystal Beast cards out of 70, a 0-card side deck, and four unusable Extra Deck slots taken by Forbidden monsters. Popularity and usage stats confirm the list is real but do not raise the score, and no card scores were averaged.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 51, Going First ≈ 50, Going Second ≈ 42, Meta = provisional, Tournament Reliability ≈ 44. Modifiers: banlist exposure (-9); engine conflict (-2). Final formula: Illegal list: capped, theoretical/structural-only. Base = 0.80*Structural(51) + 0.20*TournamentReliability(44) = 49.6 (Meta provisional, not scored), then ContextModifiers total -11 => 38.6, rounded to 39

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.76 · key two-card combo ≈ — · full-brick estimate ≈ 0.24 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Three 4000-ATK LIGHT Dragons give strong closing power if they can be summoned (Inferred from text)
• Searcher-text density (19 cards) and recursion from Monster Zone and GY give consistent access to the engine (Inferred)
• About 10 negation-text cards and 19 removal-text cards provide interaction (Inferred from text)

Weaknesses

• Illegal in OCG: five Forbidden cards are run
• Low archetype purity: 26 of 70 cards carry the exact Crystal Beast name (37.1%)
• No side deck, so no post-side plan
• Four Extra Deck slots are Forbidden and unusable

Critical choke points

• Until the five Forbidden cards are removed, the list cannot be played in OCG
• Rainbow Dragon and the Ultimate Crystal summons need seven distinct Crystal Beast names on field and GY, which is a fragile requirement
• Zombie World conflicts with Tribute-based plays

Recommended changes

Evidence & confidence

• Verified: Legality: 5 Forbidden cards run in OCG (BanList); Restricted-card statuses: Limited and Semi-Limited copies within their limits; Hypergeometric probabilities from the resolved Main Deck; Composition counts and archetype purity (26 of 70 exact-name copies); Usage statistics: 5 of 6 core cards present
• Inferred: Engine reads from card text (Crystal Beast recursion, Rainbow Dragon summon requirement); Dimension scores D1 to D14 and the structural score; Going-first and going-second estimates; Zombie World conflict with Tribute effects; Brick proxy from the no-core-card hand probability
• Provisional: Meta Power (null); Matchup coverage and D13; Any claim about the archetype's meta share
• Data gaps: No combos supplied, so combo floor, median and ceiling are text-only inference No tournament link, so archetype meta share and per-pilot match records are absent No win-rate telemetry for going-first, going-second, matchup, or brick and starter rates Meta Power is Provisional without a dated metagame sample No side deck (side_count 0), so D12 has no post-side data Deck title is null