Marincess Deck #771787 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 38/100 (±10 · Confidence: Low)

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

Legality

Main 47 / Extra 18 / Side 0 — status under the rules at evaluation time: Illegal. 3 violation(s).

Identity & game plan

• Win condition: Atlantis/Umi and Atlantean WATER board into high-ATK Link and Xyz boss monsters (Levia-Dragon - Daedalus, Poseidra Abyss, Abysstrite); Synchro and Xyz boss pressure (Icejade Gymir Aegirine, Swordsoul Supreme Sovereign, White Aura Whale)
• Turn 1 (going first): Search a WATER engine piece (Neptabyss, Warchief, Mulcharmy Purulia draw) and set up Atlantis/Umi field pressure before the opponent can interact
• Turn 2 (going second): Hand traps (Ash Blossom, Droll & Lock Bird, Maxx "C") and Dominus Impulse / Ice Barrier to break the opponent's first board, then rebuild through GY recursion
• Recovery: Recover through GY-triggered Atlantean and Umi effects (Atlantean Heavy Infantry, Atlantean Dragoons, Monster Arms of Atlantis) and Fish Sonar / Warchief searches
• After siding: Not evaluable: the list has no Side Deck, so there is no post-side plan

Why it scores here

The list opens reliably only through the search-heavy WATER engine: 18 searcher-text cards give about a 92% chance of at least one searcher in the opening hand, but any single named starter is only about 29% (3 copies, going first). It converts that into board through Atlantis/Umi and Atlantean recursion, and its top end (Poseidra Abyss, Levia-Dragon - Daedalus, Swordsoul, Icejade Gymir, all at 2800–3000 ATK) gives real closing power. Interaction is the strongest part of the system, with 8 negation-text and 11 removal-text cards plus 4 hand traps. The score is held down by the illegal list: two Forbidden cards and an 18-card Extra Deck over the OCG limit of 15 make it a theoretical, structural-only read. The archetype is labelled Marincess, but only 1.5% of the Main Deck is named Marincess and 16 of 21 core Marincess cards are absent, so the list is really an Atlantis/Umi build; the score reflects the system, not that label or its meta share, and it is not an average of card scores.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 53, Going First ≈ 50, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: banlist exposure (-8); extra-deck over size (-4). Final formula: No reliable metagame: 0.80*Structural(52.7) + 0.20*TournamentReliability(40) = 50.2, then context modifiers -12 (capped) = 38; illegal list, so theoretical/structural-only

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.29 · 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

• 18 searcher-text cards give broad access to the WATER engine
• Layered interaction: 8 negation-text, 11 removal-text, 4 hand traps
• High-ATK boss monsters (2800–3000) give real closing power
• Recursion from the GY on several Atlantean/Umi monsters

Weaknesses

• Illegal list: two Forbidden cards and an oversized Extra Deck
• Archetype label (Marincess) does not match the cards run; 16 core Marincess cards are missing
• No Side Deck, so no post-side adaptability
• No recorded combo data to confirm floor or median output
• Several conflicting sub-archetypes (Atlantis, Abyss, Daedalus, Icejade, Mermail)

Critical choke points

• Each named 3-copy starter has only about a 29% chance of appearing in the opening 5, so the engine often needs searchers to reach a live board
• Bahamut Shark and Barrier Statue are Forbidden, so the list cannot be played as built

Recommended changes

Evidence & confidence

• Verified: Illegal status: Bahamut Shark and Barrier Statue are Forbidden (legal copies 0); Extra Deck count 18 exceeds the OCG maximum of 15; Main Deck count 47 is within 40–60; Side Deck count 0; Card text for searchers, negation, removal and hand traps; Hypergeometric draw probabilities from the resolved Main Deck
• Inferred: Engine consistency and brick rate from searcher density and copy distribution; Interaction quality from negation and removal text; Closing power from boss stats; Going-first and going-second splits
• Provisional: Meta power (no dated metagame sample); Matchup and format fit (no tournament link)
• Data gaps: no combos supplied: floor, median and ceiling are text-only inference no tournament link: archetype meta-share and per-pilot match record absent no win-rate telemetry for going-first, going-second, matchup, brick or starter rates Meta Power is Provisional unless a dated metagame sample is supplied no Side Deck, so post-side plan cannot be evaluated