Reptilianne Deck #765339 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 63/100 (±7 · Confidence: Medium)

• Primary strategy: Midrange
• Secondary strategies: Stun
• Format: master-duel

Legality

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

Identity & game plan

• Win condition: Synchro and Link beaters (Melusine, Hydra, Echidna) and Vaskii after ATK-zeroing the opponent's board; Xyz/Synchro boss monsters (Beelze, Beelzeus, TY-PHON) once the Extra Deck is accessible
• Turn 1 (going first): Open a Reptile monster (Nyami, Lamia, Naga, Coatl), use Ramifications or Gardna to search the next Reptilianne piece, and ATK-zero the opponent's best monster while building toward a Synchro or Link
• Turn 2 (going second): Use the 6-card hand to ATK-zero the opposing monster (Nyami, Gorgon, Medusa, Poison) and leave a 0-ATK body that enables Vaskii or Coatl follow-ups
• Recovery: Recover from the GY through Nyami, Lamia, Gardna, Spawn and Recoil, which can remove and resummon 0-ATK or Reptile monsters
• After siding: No side deck (side_count 0); no post-side plan is available in this list

Why it scores here

The deck reliably opens: 22 of 40 main-deck cards are monsters, so the chance of no monster in a 5-card opening hand is about 1%. Those monsters are mostly 0-ATK or low-ATK Reptile starters, and recursion (Nyami, Lamia, Gardna, Spawn, Recoil) gives it several routes back after disruption. It converts into pressure through Synchro and Link beaters, Vaskii at 2600 ATK, and high-ATK bosses such as Beelze and Beelzeus. Its interaction is layered ATK-zeroing (Gorgon, Medusa, Poison, Ramifications, Scylla, Hydra's board wipe on 0-ATK monsters), which lifts end-board quality. The score comes from consistency, recovery and interaction measured on the whole system. Popularity and archetype share did not earn points, and card scores were not averaged. No combo boards exist in the evidence, so the median and ceiling reads are text-only inference, which is why confidence is Medium.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 61.5, Going First ≈ 63, Going Second ≈ 60, Meta = provisional, Tournament Reliability ≈ 58. Modifiers: Engine compactness and purity (2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) + ContextModifiers = 0.80*61.5 + 0.20*58 + 2 = 62.8 -> 63

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.99 · key two-card combo ≈ — · full-brick estimate ≈ 0.01 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Dense Reptile starter base with 22 monster copies, giving near-certain monster access
• Redundant recursion and search routes
• Layered ATK-zero interaction that closes out boards
• Compact, coherent 76% exact-name archetype purity

Weaknesses

• No side deck, so no post-side adaptation
• ATK-zero interaction is weak against ATK-reset and negation
• Several one-copy Extra Deck singles dilute the engine
• No combo evidence to confirm the ceiling or median

Critical choke points

• Face-up Reptilianne monsters are needed for Poison, Ramifications and Vaskii
• Lamia needs all monsters you control to be face-up Reptiles

Recommended changes

Evidence & confidence

• Verified: Legal in Master Duel: 40 main, 15 extra, 0 side, all cards Unlimited; 76.4% exact-name archetype purity; 13 off-archetype copies; Probabilities: 3-copy card P(>=1 in 5) = 0.3376; searcher group P = 0.4271
• Observed: Usage stats show 25 core cards with 17 present by the export's own count, but see data_gaps
• Inferred: Starter access (D1) and brick estimate (D2); Ceiling and median from card text only (D3, D4); Interaction quality semantic read (D7); Going-first and going-second estimates
• Provisional: Meta Power (no dated sample); Matchup and format fit (D13); Side adaptability (D12, no side deck)
• Data gaps: usage_statistics.in_this_deck is false for every Extra Deck card (Beelze, Beelzeus, Echidna, Melusine, Hydra, TY-PHON, Knightmare Phoenix, S:P Little Knight), although the cards list shows them in the deck. The export's missing_core list (8 cards) is therefore wrong; all 25 core cards appear present. Pipeline bug to check. probabilities.archetype_core_group is a degenerate proxy (copies_in_deck 40, p_open 1.0) and gives no consistency signal no combos supplied, so the 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/starter rates) Meta Power is Provisional without a dated metagame sample side deck is empty, so post-side scoring is not applicable