Polymerization Deck #766921 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 53/100 (±8 · Confidence: Medium)

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

Legality

Main 40 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Fusion Summon Idaten the Conqueror Star, Raijin the Breakbolt Star, Denial Deity Dotan or Shura the Combat Star from the Extra Deck, then attack through the board with 3000-ATK bodies.; Level 5 Star and Warrior monsters that Normal Summon or Special Summon into a second body (Hayate, Tenma, Kaiki, Kaiza, Todoroki, Senko) to extend the board and feed Fusion Summons.
• Turn 1 (going first): Open a monster that Normal Summons without Tribute (Hayate, Tenma) or a Spirit of Neos / Kaiki / Todoroki Special Summon route, then use Polymerization, Face Card Fusion, Ready Fusion or Instant Fusion, or Kaiki/Todoroki's own Fusion effects, to land a 3000-ATK Fusion.
• Turn 2 (going second): Hold Infinite Impermanence and Dominus Purge as reactive hand-activated traps against the opponent's first play, then rebuild with the Star monsters' second-body effects and a Fusion Summon the following turn.
• Recovery: Spirit of Neos, Joker's Knight and Shield of the Millennium Dynasty search the Polymerization / Spell card that restarts the fusion route; Overlay Booster and Idaten's searcher supply Level 5 Warriors to refill the board.
• After siding: No side deck is registered in the export; any post-side plan is unavailable and the deck cannot adapt between games.

Why it scores here

The deck reliably opens a functional board because it runs many monsters that Normal or Special Summon from hand (Hayate, Tenma, Kaiki, Spirit of Neos, Kaiza, Todoroki, Senko) and 22 Level 5 monsters for the Star effects, so the single-card starter probability is high (Inferred). Fusion access is the real gate: six fusion enablers (Polymerization x2, Face Card Fusion x2, Ready Fusion, Instant Fusion) give about a 58% chance of at least one in a 5-card opening hand (hypergeometric, Inferred), with Kaiki and Todoroki providing a partial backup route. Interaction is layered through three Infinite Impermanence and three Dominus Purge plus removal and negation text, which helps it survive an opposing first play, while the Fusion monsters Idaten, Raijin, Dotan and Shura give it closing power on the board. It loses points for having no side deck, two dead-or-reactive card slots (Scroll of Bewitchment x2, Triple Tactics Talent), three Xyz and two Link Extra Deck cards with no matching support in the main deck, and a sprawl across several sub-archetypes. The score comes from consistency and closing power on the system, not from the Polymerization name or from averaging card scores; no meta share or combo data was supplied, so Meta Power stays provisional.

Dimension scores

How the score was computed

Strategy profile: Midrange weights only; Combo noted as a secondary tag, not blended. Structural ≈ 60, Going First ≈ 62, Going Second ≈ 56, Meta = provisional, Tournament Reliability ≈ 55. Modifiers: No side deck (-2); Engine conflicts / sprawl (-2); Fusion-enabler dependence (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional): 0.80*60 + 0.20*55 = 59, plus modifiers -6 = 53

Probability & combo summary

• Opening a starter: P(≥1) ≈ — · 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

• Many Normal-Summon-without-tribute and Special-Summon-from-hand starters with redundant Level 5 Warrior bodies
• Six fusion enablers plus Kaiki and Todoroki Fusion routes gives multiple ways into the Extra Deck
• Layered reactive interaction: three Infinite Impermanence and three Dominus Purge
• High closing power from 3000-ATK Fusion monsters and pierce

Weaknesses

• No side deck, so no post-side adaptation
• Dead-or-conditional slots: Scroll of Bewitchment x2, Triple Tactics Talent
• Three Xyz and two Link Extra cards have no meaningful main-deck support
• Sub-archetype sprawl with 3.6% exact-name purity

Critical choke points

• Fusion enablers: a hand with no Polymerization, Face Card Fusion, Ready Fusion, Instant Fusion, or a Kaiki/Todoroki route cannot reach the Extra Deck (about 42% at 5 cards, Inferred)

Recommended changes

Evidence & confidence

• Verified: Main 40 / Extra 15 / Side 0 legal for master-duel (size 40-60 main, 0-15 extra); Instant Fusion Limited with 1 copy run; Card text for Shura, Idaten, Raijin, Dotan, Tenma, Hayate and Kaiki as excerpted; Composition: 10 Fusion, 3 Xyz, 2 Link in Extra; 6 three-copy, 8 two-copy, 6 one-copy main cards
• Inferred: Starter access and fusion-enabler probabilities (hypergeometric); Interaction density from text flags; Brick and dead-slot estimate; Going-first and going-second scores; Structural and final scores
• Provisional: Meta Power and D13 matchup fit (no tournament link or dated meta sample); Median output D4 (no recorded boards)
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and pilot record absent usage_statistics contradicts the card list: 12 cards show copies_in_deck 0 there but appear in cards with copies 1-2; core_present 13/25 unreliable No side deck in the export, so best-of-3 side plan cannot be assessed No win-rate telemetry exists in YGOVN, so consistency and matchup signals are Inferred Meta Power is Provisional unless a dated metagame sample is supplied