Harpie Deck #763315 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 22/100 (±8 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Toolbox, Tempo
• Format: ocg

Legality

Main 52 / Extra 17 / Side 0 — status: Illegal. 4 violation(s).

Identity & game plan

• Win condition: Xyz pressure from Train / Superdreadnought Rail Cannon Extra Deck monsters (Gustav Rocket 5000 ATK, Juggernaut Liebe, Flying Launcher) once the Train engine is online; Infinitrack and Machina board presence backed by Harpie and Mulcharmy draw-and-search support
• Turn 1 (going first): Open a Train or Infinitrack starter, use Night Train / Exceptional Schedule / Infinitrack Harvester to search, and build an Xyz or Link board while holding hand traps such as Ash Blossom or Maxx C for the opponent's first activation
• Turn 2 (going second): Respond to the opponent's first summon with Droll & Lock Bird, Maxx C or Ghost Sister, then use Mulcharmy draws and K9 / Carnot / Machina Citadel to contest the board
• Recovery: Mulcharmy draws, Infinitrack Tunneller GY recursion and Night Train GY revival rebuild the hand and the Train engine after a board wipe
• After siding: No Side Deck is registered (0 cards), so no post-side plan can be evaluated

Why it scores here

This list is Illegal in OCG: the Extra Deck has 17 cards against a 15-card cap, Superdreadnought Rail Cannon Gustav Max is run 3 copies against a Limited cap of 1, and Kashtira Arise-Heart and Varudras, the Final Bringer of the End Times are both Forbidden and in the Extra Deck. Under the Illegal rule the score is capped and labelled structural-only, so the 22 is theoretical and does not follow the normal 0.80/0.20 formula. The structural read (about 48) is built from the system: searcher density (14 searcher-text cards, about 81% at least one in a 5-card opening hand) and four hand traps support the engine, while the six-archetype spread (Train 24, generic 13, Infinitrack 10, Mulcharmy 6, Harpie 3, K9 3, Machina 3, and others) and 4.3% exact-archetype purity cap consistency and efficiency. Popularity did not earn points: Harpie is the archetype label, but only 3 cards carry the exact name, and the one core card in usage stats (Droll & Lock Bird) is Limited to 1 copy. No card scores were averaged; the score comes from the system dimensions alone.

Dimension scores

How the score was computed

Strategy profile: Midrange primary, Toolbox secondary; Midrange weights used for the structural read. Structural ≈ 48, Going First ≈ 46, Going Second ≈ 47, Meta = provisional, Tournament Reliability ≈ 35. Modifiers: Forbidden cards in the Extra Deck (-8); Extra Deck over limit and copy overrun (-4). Final formula: Illegal cap: Final set to 22 as structural-only theoretical. Normal formula would give 0.80*48 + 0.20*35 = 45.4 before the cap; the cap replaces it and Meta is null (Provisional).

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.81 · 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 searcher and draw-engine text (14 searcher-text cards) gives reliable early access to the Train and Infinitrack engines
• Four hand traps and seven negation-text cards give multiple first-activation answers on either turn
• High-ATK Extra Deck finishers (Gustav Rocket 5000, Flying Launcher 3800, Liebe 4000) give closing power if the engine goes online

Weaknesses

• Illegal in OCG: Forbidden cards (Kashtira Arise-Heart, Varudras) and over-limit copies (Gustav Max x3, Limited 1) and Extra Deck 17 over the 15 cap
• Six archetype families and 4.3% exact-archetype purity make the engine incoherent for a single plan
• No Side Deck, so there is no post-side adaptation
• Only one usage-stat core card is present, against an observed inclusion rate that is not reproduced here

Critical choke points

• Gustav Max single-copy legal limit: two of its three copies must be removed before the list can be played
• Train engine depends on Night Train and Exceptional Schedule as the main search, both with low copy counts

Recommended changes

Evidence & confidence

• Verified: Legality: Extra Deck 17 over the 15 cap; Gustav Max 3 copies vs Limited 1; Kashtira Arise-Heart and Varudras Forbidden; Main Deck 52 is inside the 40-60 range; Side Deck 0 is inside 0-15; Searcher-text count 14 and hand-trap count 4 are from role tags; Archetype purity 4.3% and archetype spread from the evidence composition; Usage stats: Droll & Lock Bird 69.2%, Harpie's Feather Duster 61.5% (absent from this deck)
• Observed: No combos supplied: combos_evidence.total_combos = 0
• Inferred: Opening-hand starter estimates (3-copy 0.27, searcher group 0.81) from the hypergeometric table; Structural dimension scores (D1-D14) and the strategy classification; Going-first and going-second power estimates from the structural read; Midrange primary strategy classification, from the mixed archetype spread and the search/removal text
• Provisional: Meta Power (null) and D13 format fit: no dated metagame sample and no tournament link; Tournament reliability (35) and the uncertainty band (+/-8)
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot match record are absent No win-rate telemetry for going-first/second, matchups, or brick/starter rates Meta Power is Provisional unless a dated metagame sample is supplied No Side Deck is registered, so D12 is unmeasured beyond the zero count Illegal list: the score is capped and structural-only, not a normal Final Contextual score