Atlantean Deck #771377 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 35/100 (±8 · Confidence: Low)

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

Legality

Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Synchro, Xyz and Link boards (Poseidra Abyss, Azure Ocean Dragon Lord, Levia-Dragon, Abysstrite) built from Atlantean and Mermail WATER monsters; Atlantis field-spell recursion of Sea Serpent and Umi monsters through Advent of Atlantis, Warchief and Call of Atlantis
• Turn 1 (going first): Open Neptabyss, Atlantean Dragoons or Mulcharmy Purulia, search via Neptabyss or Mermail Abysspike, and build a Link or Xyz board while holding Ash Blossom and Ghost Belle for protection
• Turn 2 (going second): Use hand traps (Ash Blossom, Ghost Belle, Infinite Impermanence, Evenly Matched, Nibiru, Droll and Lock Bird) to interrupt the opponent's summon, then rebuild through Atlantean searchers
• Recovery: Recur Atlantean and Sea Serpent monsters from the GY through Atlantis, Warchief and Monster Arms, and rebuild Extra Deck boards from the GY
• After siding: No Side Deck is registered, so no post-side plan can be scored; the deck runs a fixed 55-card main deck

Why it scores here

The deck is scored as a system, not as an average of its cards. Its consistency comes from a large archetype core: the Atlantean/Atlantis group has about 0.91 odds of at least one live member in a 5-card opening hand, and 16 searcher-text cards give about 0.83 odds of a search being available, both Inferred from the hypergeometric draw table. Its interaction is dense, with 14 hand traps and 17 negation-text cards, which lifts the going-second score and end-board interaction. Its Extra Deck covers Link, Xyz and Synchro lines, which gives a credible but unmeasured board ceiling. The score is held down by low archetype purity (17.1% exact-name copies, 58 off-archetype), the lack of any recorded boards or combo medians, no Side Deck, and an illegal list: Ash Blossom & Joyous Spring is run three times against an OCG limit of two. Popularity or meta share did not earn points, since no tournament data is linked. Because the list is illegal, the score is a capped, theoretical structural read and not a normal Final Contextual score.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 53, Going First ≈ 50, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 50. Modifiers: Illegal copy count (-6); No Side Deck (-2); Semi-Limited dependence (0); Illegal cap (-10). Final formula: No reliable metagame: theoretical 0.80*Structural(53) + 0.20*TournamentReliability(50) + Modifiers(-8) = 45, capped to 35 because the list is Illegal (over copy limit); Meta Power provisional

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.83 · 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 hand-trap and negation package (14 hand traps, 17 negation-text cards) that carries going-second games
• Strong archetype core (Atlantean/Atlantis group about 0.91 odds in a 5-card hand) with several searchers
• Full Extra Deck covering Link, Xyz and Synchro boards, with 2800-3000 ATK boss monsters

Weaknesses

• Illegal list: Ash Blossom & Joyous Spring is run 3 copies against an OCG limit of 2
• Low archetype purity (17.1% exact-name) and 19 tech slots dilute the engine
• No Side Deck and no recorded combo, matchup or tournament data

Critical choke points

• Atlantis, City of the Sea Dragon is the single field-spell hub for Umi and Atlantis recursion; if it is not live, several engines stall
• The Ash Blossom / Ghost Belle hand-trap pair is the main protection; both are needed for interruption-resilient lines
• Mulcharmy and Neptabyss starters rely on an empty or near-empty field, which is inconsistent with a board-first plan

Recommended changes

Evidence & confidence

• Verified: Main Deck 55 cards, Extra Deck 15 cards, no Side Deck, within the OCG size rules (main 40-60, extra 0-15); Ash Blossom & Joyous Spring copies run = 3 versus legal copies = 2 (Illegal); Archetype exact-name purity 17.1% (12 of 70 copies)
• Inferred: Starter and searcher access from the hypergeometric draw table (0.835 searcher, 0.907 archetype core); Hand-trap density and interruption resilience from text flags (14 hand traps, 17 negation-text cards); Going-second strength from hand-trap density, not from recorded matchup data
• Provisional: Meta Power and Matchup fit (D13): no dated meta sample or tournament link
• 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 Side Deck: post-side adaptability cannot be scored from data No win-rate telemetry for going-first, going-second, matchup or brick rate Meta Power provisional without a dated metagame sample Deck title is null in the export