Reptilianne Deck #765739 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 48/100 (±8 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Zero the opponent's monsters with ATK-reduction effects (Gorgon, Medusa, Nyami, Poison, Recoil), then convert with Synchro/Link beaters (Melusine, Hydra, Echidna) and Vaskii; Super Starslayer TY-PHON and Beelze/Beelzeus as single-copy or double-copy closers when the field is already controlled
• Turn 1 (going first): Open a DARK Reptile starter (Scylla, Coatl, Lamia, Naga) and use Ramifications or Gardna to find a second Reptilianne piece, then ATK-zero the best opposing monster
• Turn 2 (going second): Use Nyami, Gorgon or Medusa from hand as an ATK-zero answer to the opponent's first board, then rebuild through Spawn and Lamia recursion
• Recovery: Recursion from the GY: Spawn removes a Reptilianne from GY for two tokens, Gardna searches on destruction, and Recoil/Lamia can revive 0-ATK monsters
• After siding: No side deck is registered (side_count 0), so there is no post-side plan in this build

Why it scores here

The deck reliably opens its engine through three-copy Reptile starters and searchers, but its opening odds are only moderate: the chance of at least one of any three-copy card in a 5-card going-first hand is about 0.34 (Inferred). Its strongest value is in ATK-zero interaction, spread across Nyami, Gorgon, Medusa, Poison, Recoil and Zerozerock, which gives the system real endboard control. Conversion relies on Synchro and Link beaters that need the right Reptile materials, and no recorded boards exist to confirm median output, so the closing score is held down. No side deck and no meta or tournament data keep the reliability and format-fit scores low; the score comes from consistency, interaction and resilience on the system, not from the archetype's popularity or an average of individual card scores.

Dimension scores

How the score was computed

Strategy profile: Control. Structural ≈ 53, Going First ≈ 50, Going Second ≈ 47, Meta = provisional, Tournament Reliability ≈ 48. Modifiers: no side deck (-2); conditional engine on 0-ATK boards (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.34 · 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

• Dense ATK-zero interaction across six Main Deck cards
• Searchers and GY recursion give card flow
• Full 40-card main and 15-card Extra, both legal

Weaknesses

• Many starters need Reptile or 0-ATK conditions on the board
• No side deck and no post-side plan
• No recorded boards to confirm the conversion ceiling

Critical choke points

• Access to a DARK Reptile monster for Coatl and similar starters
• Opponent having a 0-ATK monster for Lamia and Vaskii

Recommended changes

Evidence & confidence

• Verified: Deck is legal: 40 main, 15 extra, 0 side, no banlist violations; Copy counts and card text for all 40 main and 15 extra cards
• Observed: Archetype core inclusion from usage_statistics
• Inferred: Starter access and brick estimates from hypergeometric odds; Interaction quality from card text; Conversion ceiling and median from card text alone
• Provisional: Meta power and format fit (no dated metagame); Side-deck adaptability (no side deck registered)
• Data gaps: no combos supplied; combo floor, median and ceiling are text-only inference no tournament link; archetype meta-share and per-pilot record absent no win-rate telemetry; going-first and matchup numbers are unknown Meta Power is Provisional unless a dated metagame sample is supplied