Ojama Deck #766239 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 60/100 (±6 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Stall the opponent's board with repeated ATK-to-0 effects (Nyami, Gorgon, Medusa, Poison, Recoil, Rage, Echidna), then convert through Vaskii, Melusine, Hydra or Beelzeus while the opponent cannot attack profitably.; Card advantage from Ramifications, Gardna, Echidna and Melusine searches, plus Hydra draws on Synchro Summon.
• Turn 1 (going first): Open with a Reptile monster (Naga, Lamia or Coatl) and one ATK-zeroing effect; Ramifications or Gardna keeps a follow-up in hand and a Synchro or Link line builds the end board.
• Turn 2 (going second): Use the six-card hand for a hand-start Lamia or Coatl Special Summon to answer the opponent's first summon with ATK-zero effects, then rebuild through Gardna or Ramifications searches.
• Recovery: Gardna and Echidna search Reptilianne monsters after destruction or Link Summon; Nyami and Medusa recur from the Graveyard, and Spawn trades a GY Reptilianne for two Tokens.
• After siding: No side deck is registered (side_count 0), so there is no post-side plan to evaluate; Master Duel is played without a sideboard.

Why it scores here

The deck reliably opens a Reptile starter: roughly 15 starter-capable main-deck copies at three copies each give an estimated 0.92 chance of at least one in a five-card opening hand (Inferred), and Naga, Nyami, Lamia and Coatl each have an interaction or summon effect. Its strongest dimension is the interaction layer: ATK-zero effects come from Nyami, Gorgon, Medusa, Poison, Recoil, Rage, Zerozerock and Echidna, so the end board is handled by several independent sources rather than one card. Resilience and grind also score well because Gardna, Echidna, Ramifications and Melusine convert destroyed or spent cards into new searches. Combo conversion and median output are scored only from card text, since no recorded boards exist, and the deck has no side deck and no matchup or tournament data, which caps Tournament Reliability and leaves Meta Power provisional. Popularity did not earn points: the archetype label is Ojama but the list is mostly Reptilianne (42 related copies, 5.5% exact-name purity), and this was scored as the system described, not by averaging individual card scores.

Dimension scores

How the score was computed

Strategy profile: Stun primary; Midrange secondary, not separately weighted. Structural ≈ 63, Going First ≈ 66, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 60. Modifiers: No side deck / weak post-side plan (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional); Structural 63 (D13 excluded, Stun weights re-normalized), TR 60, modifiers -2 => 60

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.92 · key two-card combo ≈ — · full-brick estimate ≈ 0.08 (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 many independent cards
• Starter access is high: about 15 starter-capable copies at 3 each
• Searchers and draw effects give card advantage over a long round

Weaknesses

• No hand traps or floodgates; going-second answers depend on hand-start summons
• No side deck, so no post-side adaptation
• Several Extra slots (Beelze, Beelzeus, Phoenix, Little Knight, TY-PHON) are off-plan or require support not in the main deck

Critical choke points

• Summons depend on a face-up Reptilianne or a Reptile in the GY; a board wiped with no Graveyard Reptile leaves spells dead
• TY-PHON x2 needs two Level 12 materials that the main deck does not show

Recommended changes

Evidence & confidence

• Verified: Legal status, 40/15/0 size, copy counts and Extra breakdown; Card text and stats for the 33 distinct cards; Core-card usage: 17 of 25 archetype core cards present
• Inferred: Starter access about 0.92 at least one in 5 from the hypergeometric table; Interaction, resilience and grind dimension reads from card text; Going-first and going-second estimates
• Provisional: Meta Power and D13 matchup fit (no dated meta sample); Tournament Reliability post-side terms (no side deck)
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: no archetype meta-share or per-pilot record No win-rate telemetry (going-first/second, matchup, brick/starter rates) Archetype label 'Ojama' does not match the list (mostly Reptilianne); treated as a label mismatch, not a scoring input No side deck registered; post-side is not evaluable Meta Power provisional without a dated sample