Snake-Eye Deck #757181 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 33/100 (±10 · Confidence: Low)

• Primary strategy: Combo
• Secondary strategies: Midrange, Toolbox
• Format: master-duel

Legality

Main 45 / Extra 23 / Side 0 — status: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Ultimate Crystal Rainbow Dragon Overdrive and Crystal Beast Rainbow Dragon, reached through the Rainbow Bridge and Crystal Beast continuous-spell engine; Xyz and Link beatsticks (Tornado Dragon, Traptrix Rafflesia, Saryuja Skull Dread) once a board exists
• Turn 1 (going first): Set Rainbow Bridge or Crystal Bond, search a Crystal Beast, and build toward Rainbow Dragon; the build has no reliable turn-1 Snake-Eye starter
• Turn 2 (going second): Maxx C and Forbidden Droplet/Crown answer the opponent's first summon, then the Crystal Beast engine rebuilds on the next turn (Inferred)
• Recovery: Crystal Beast monsters return to the Spell and Trap Zone as Continuous Spells when destroyed in a Monster Zone, and Crystal Bond or Rainbow Bridge re-searches the engine
• After siding: Not applicable: the Side Deck is empty (0 cards)

Why it scores here

The list is Illegal: it runs Number 41 Bagooska at 1 copy despite the Master Duel Forbidden status, and it carries 23 Extra Deck cards against a 15-card cap, so under the rubric it receives a capped theoretical score rather than a normal contextual score. Structurally it is a Crystal Beast and Rainbow Bridge build rather than a Snake-Eye deck: exact Snake-Eye name purity is 4.4 percent, and Snake-Eye Poplar and Diabellstar are the only archetype engine pieces. Its main functional strength is the Crystal Beast continuous-spell engine, which recovers from destruction and has a high-ceiling Rainbow Dragon finisher reached through Ultimate Crystal summoning. Its floor is weakened by conditional starters (Golden Rule and Rainbow Dragon need several Crystal Beast names on field or in the GY), 14 searcher-text cards that do not all convert into a live engine, and a 45-card main deck that is only moderately compact. Popularity and the archetype usage stats were not credited, and card scores were not averaged into the deck score. No combo boards or win-rate data are present, so all conversion and matchup claims are Inferred.

Dimension scores

How the score was computed

Strategy profile: Combo primary with Midrange secondary (structural profile only). Structural ≈ 46, Going First ≈ 45, Going Second ≈ 40, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: banlist exposure (-8); extra deck over limit (-2); engine conflicts (-2). Final formula: Illegal deck: capped theoretical score. Base 0.80*Structural(46) + 0.20*TournamentReliability(40) = 45, then modifiers -12, floored to a low capped score of 33; Meta Power is null (provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.86 · 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

• Crystal Beast continuous-spell engine recovers from destruction in the Monster Zone
• High-ceiling 4000 ATK finishers (Rainbow Dragon and Ultimate Crystal Rainbow Dragon Overdrive)
• Layered negation and removal: Maxx C, Forbidden Droplet, Forbidden Crown, Crystal Miracle, Gravedigger's Trap Hole

Weaknesses

• Illegal list: Forbidden Bagooska is run and the Extra Deck is over the 15-card limit
• Snake-Eye identity is largely absent (4.4 percent exact-name purity), so the archetype label does not describe the deck
• Conditional starters and fragmented sub-archetypes raise the brick rate
• No Side Deck, so there is no post-side adaptation

Critical choke points

• The Ultimate Crystal line needs 7 distinct Crystal Beast names on field or in the GY
• The Extra Deck over-limit and Forbidden card must be fixed before the list is playable in Master Duel

Recommended changes

Evidence & confidence

• Verified: Main Deck is 45 cards, within the 40 to 60 size range; Extra Deck is 23 cards, above the 15-card maximum; Number 41: Bagooska is Forbidden and run 1 time; Exact-name Snake-Eye purity is 4.4 percent; Side Deck is 0 cards
• Inferred: Searcher group P(at least one in an opening 5) about 0.86; Crystal Beast core group P(at least one in an opening 5) about 0.21; Conversion of the Crystal Beast engine into Rainbow Dragon from card text
• Provisional: Matchup fit and Meta Power, since no dated metagame sample is supplied
• 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 record are absent No win-rate telemetry (going-first/second, matchup, brick or OTK rates) Meta Power is provisional without a dated metagame sample The Side Deck is empty