Ojama Deck #448536 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 20/100 (±8 · Confidence: Low)

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

Legality

Main 40 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Ojama Trio tokens plus Lava Golem / Ojama King boards and damage from Just Desserts, Secret Barrel and Des Koala (Inferred from card text; no recorded boards); Fusion beaters (Gatling Dragon, King Dragun, The Last Warrior from Another Planet) once the field is cleared (Inferred)
• Turn 1 (going first): Open with Ojama Trio (2 copies) or a generic trap/spell line, then aim to summon Lava Golem or Fusion Summon from the Extra Deck (Inferred)
• Turn 2 (going second): Use the generic interaction suite (Solemn Judgment, Magic Cylinder, Ring of Destruction, Nightmare Wheel, Messenger of Peace) to answer the opponent's board, then force a Fusion line (Inferred)
• Recovery: Draw and search effects are thin; recovery relies on Morphing Jar and Pot of Greed, and Pot of Greed is not legal in this format (Inferred)
• After siding: Not assessable: the side deck is empty (0 cards), so there is no post-side plan

Why it scores here

This deck is Illegal in Master Duel (Solemn Judgment at 3 copies against a limit of 1, and a Forbidden Pot of Greed), so it is capped at 20 and the evaluation is structural only. Structural power comes out near 38 under the Toolbox profile: the deck has a dense interaction suite (Solemn Judgment, Magic Cylinder, Ring of Destruction, Nightmare Wheel, Messenger of Peace), but its archetype engine is thin, with only 2 Ojama Trio and 1 Ojama King (exact-name purity 5.5%). Engine access is weak: the probability of at least one Ojama Trio in a 5-card opening hand is about 0.24. The score comes from consistency, median output and interaction on the system as a whole, not from averaging card scores, and not from the archetype's popularity. There are no recorded boards, no side deck and no meta sample, so the floor and median rest on text-only inference.

Dimension scores

How the score was computed

Strategy profile: Toolbox. Structural ≈ 38, Going First ≈ 36, Going Second ≈ 40, Meta = provisional, Tournament Reliability ≈ 33. Modifiers: banlist exposure (-8). Final formula: No reliable metagame: 0.80*Structural + 0.20*TournamentReliability = 0.80*38 + 0.20*33 ≈ 37; the modifiers give 29, then the Illegal cap sets the final to 20 (theoretical/structural only)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.24 · 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

• Broad trap and spell interaction (Solemn Judgment, Magic Cylinder, Ring of Destruction, Nightmare Wheel, Messenger of Peace, Gravity Bind)
• Several high-ATK finishers in the Extra Deck (Lava Golem, Gatling Dragon, King Dragun, The Last Warrior from Another Planet)
• Pressure from Just Desserts and Secret Barrel, which scale with the opponent's board and hand

Weaknesses

• Illegal as built: Solemn Judgment over the copy limit and Pot of Greed Forbidden
• Thin archetype engine: 2 Ojama Trio and 1 Ojama King, with 5.5% exact archetype purity
• No side deck (0 cards), so there is no post-side adaptability
• Many non-synergistic generic cards dilute the engine

Critical choke points

• Ojama Trio (2 copies) is the only starter that reliably begins the Ojama plan; P(≥1 in opening 5) ≈ 0.24
• Legal-copy fixes change the interaction count, because Solemn Judgment drops from 3 to 1 copy

Recommended changes

Evidence & confidence

• Verified: Legality: Solemn Judgment 3 copies vs a limit of 1; Pot of Greed Forbidden (1 copy run); Deck size: 40 Main, 15 Extra, 0 Side (within Master Duel size rules); Exact archetype purity 5.5% (3 exact-name copies); Ojama Trio is 2 copies in the deck; the usage stat lists a typical 3
• Inferred: P(≥1 Ojama Trio in opening 5) ≈ 0.24 (hypergeometric); Interaction density is high from card text (Solemn, Magic Cylinder, Ring of Destruction, Nightmare Wheel, Messenger); Ojama Trio into Ojama King or Lava Golem as the main ceiling route; Consistency and brick estimates from composition and text
• Provisional: Meta power and matchup fit: no dated metagame sample
• Data gaps: No combos supplied: the combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot match record are absent The usage-statistics core list is almost entirely Reptilianne and Beelze cards, which do not match the Ojama archetype; only Ojama Trio overlaps, so the core-card read is unreliable No side deck: the post-side and best-of-3 evaluation is absent No win-rate telemetry exists in YGOVN, so going-first and going-second splits are Inferred Meta Power is Provisional without a dated metagame sample