Ancient Gears Deck #747461 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 58/100 (±6 · Confidence: Medium)

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

Legality

Main 60 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Ancient Gear boss monsters, chiefly Chaos Ancient Gear Giant (4500 ATK, Fusion) and Ultimate Ancient Gear Golem (4400 ATK, piercing), reached through Ancient Gear Golem and Ancient Gear Fusion chains; Xyz and Link follow-ups (Superdreadnought Rail Cannon Gustav Rocket, Varudras, Cyber Dragon Nova) once a board is established
• Turn 1 (going first): Open Ancient Gear Statue, Wyvern, Advance or Dark Golem to search Ancient Gear pieces; use Ancient Gear Fortress and Ancient Gear Duel to protect the first summon, then move toward a Fusion or Xyz boss
• Turn 2 (going second): Answer the opponent's board with Forbidden Droplet, Maxx C, Triple Tactics Thrust or the board-wipe spells, then rebuild through Ancient Gear Statue or Tanker, which can summon from the GY, and recover with Geartown
• Recovery: Geartown and Night Train Blue Traveler recur Ancient Gear and Train monsters from the GY, and Ancient Gear Dark Golem and Commander regenerate Golem pieces
• After siding: None: side_count is 0 and the format lists no side deck, so there is no post-side plan to score

Why it scores here

The deck's score comes from the system, not from averaging card scores or from Ancient Gears being a popular archetype. Its 27 archetype-core copies give a 0.96 hypergeometric chance of at least one in a 5-card opening hand, and 22 searcher-text copies give 0.91, so the engine is usually reachable on turn 1 or 2 (Inferred). Strong closers, including Chaos Ancient Gear Giant, Ultimate Ancient Gear Golem, Gustav Rocket and Varudras, plus Ancient Gear Fortress and Ancient Gear Duel as protection, raise the score for the kill and the going-second board break. Deductions come from a spell-heavy main deck (31 spells, several dead or conditional, such as Heavy Storm, Feather Duster, Lightning Storm and the Triple Tactics cards), a multi-archetype composition (Train, Shaddoll, Cyber Dragon, Mulcharmy, Kaiju alongside Ancient Gear), and the absence of any recorded boards or a side deck. No combo or meta data was supplied, so the floor, median and matchup scores are inferred or provisional.

Dimension scores

How the score was computed

Strategy profile: Combo profile for Structural; Midrange and Toolbox noted as secondary strategies, not blended into weights. Structural ≈ 63, Going First ≈ 64, Going Second ≈ 63, Meta = provisional, Tournament Reliability ≈ 56. Modifiers: Engine conflicts across sub-engines (-2); Weak post-side plan (-2); Dependence on one Extra-Deck finisher (0). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional): 0.80*63 + 0.20*56 = 61.6, minus 4 modifier points = 57.6, rounded to 58

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.96 · 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

• Multiple independent starters and a large searcher count keep the engine reachable
• Chaos Ancient Gear Giant and Ultimate Ancient Gear Golem give a high closing ceiling
• Ancient Gear Fortress and Duel protect the first summon
• Recursion through Geartown and Night Train supports recovery

Weaknesses

• 31 spells, with several dead or conditional cards
• Off-archetype cards (Train, Shaddoll, Cyber Dragon, Mulcharmy) dilute the core
• No recorded boards, so the median and floor are unverified
• No side deck, so no post-side adaptation

Critical choke points

• Chaos Ancient Gear Giant as the main finisher, requiring four Ancient Gear monsters to Fusion Summon

Recommended changes

Evidence & confidence

• Verified: Legal status: 60 main, 15 extra, 0 side; no violations; Restricted cards Feather Duster, Heavy Storm and Maxx C each run 1 copy, within Limited; Extra deck breakdown: 9 Xyz, 3 Link, 3 Fusion; Card stats and card text as listed in evidence; Usage-core list shows 25 core cards with 13 missing
• Observed: Copy histogram 22 x1, 4 x2, 10 x3 (60 cards)
• Inferred: Starter reliability from hypergeometric probabilities (0.96 archetype core, 0.91 searchers, 0.23 per 3-copy starter); Combo ceiling from card text (Chaos Giant, Gustav Rocket, Ultimate Golem); Brick and dead-card risk from spell count and conditional cards; Interaction quality from text role hints
• Provisional: Meta power (null, no dated sample); Matchup and format fit (D13 at neutral 50); Side adaptability (no side deck exists)
• Data gaps: no combos supplied: combo floor, median and ceiling are text-only inference no tournament link: archetype meta-share and pilot match record absent no win-rate telemetry for this deck: going-first, going-second, matchup and brick rates are Inferred or Unknown usage_statistics core flags are inconsistent with the card list: Chaos Ancient Gear Giant, Ultimate Ancient Gear Golem and Ancient Gear Ballista appear as in_this_deck false although they are in the Extra zone; likely a main-deck-only match, so core_present_pct is understated title is null, so the deck name is unavailable no side deck data; post-side scoring not possible Meta Power is Provisional unless a dated metagame sample is supplied