Mermail Deck #767293 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 40/100 (±8 · Confidence: Low)

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

Legality

Main 55 / Extra 15 / Side 0 — status: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Extra-Deck boss end boards: Worldsea Dragon Zealantis, Poseidra Abyss, Azure Ocean Dragon Lord, Abysstrite (Inferred from text); Daedalus / Atlantis Link and Xyz pressure through Levia-Dragoon, LeVirtue Dragon and Mermail Abyssgaios
• Turn 1 (going first): Open on an Atlantean or Mermail searcher (Neptabyss, Abyssrhine, Mermail Abysspike, Mulcharmy) and Link or Xyz into a boss while holding hand traps for the opponent's first answer
• Turn 2 (going second): Use the 9 hand traps (Ash, Ghost Ogre, Ghost Belle, Droll, Dominus Impulse, Solemn) to stop the opponent's first engine play, then rebuild through Atlantean Dragoons and Mermail searches
• Recovery: Recover through Atlantean/Mermail GY-revive and search effects (Warchief, Abysspike, Dragoons) plus Mulcharmy draw, which is Inferred from card text only
• After siding: No side deck (side_count 0); no post-side plan exists

Why it scores here

The score comes from the deck as a system, not from averaging its cards. The Atlantean and Mermail searchers give a high chance (about 0.83 for at least one searcher in a 5-card hand, Inferred) of reaching a live engine, and nine hand traps give real interaction on both the first and second turn. The Extra Deck (2800-3000 ATK bosses, Worldsea and Poseidra) gives strong closing power once a boss lands. Those strengths are offset by a 55-card main deck with many conditional and brick-prone cards, no side deck, no combo data, and an illegal list (Ash Blossom and Dominus Impulse each run 3 copies against a limit of 2), which caps the score. Archetype popularity (the 27-card core group is 97% likely in hand, Inferred) confirms the list is real but did not add points.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 57, Going First ≈ 55, Going Second ≈ 60, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist_exposure (-10); no_side_deck (-2). Final formula: Illegal cap: theoretical 0.80*57 + 0.20*45 + modifiers (-12) = 43, capped to 40; structural-only, no normal Final Contextual score (Meta 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

• Redundant searcher set (Neptabyss, Abyssrhine, Mermail Abysspike, Mulcharmy) gives high opening access
• Nine hand traps cover first-turn and second-turn interaction
• Extra Deck has 2800-3000 ATK bosses with multiple Link and Xyz routes

Weaknesses

• Illegal list: Ash Blossom and Dominus Impulse each run 3 copies against a limit of 2
• 55-card main with many conditional or brick-prone cards
• No side deck, so no best-of-3 adaptation

Critical choke points

• Extra-Deck boss summons depend on a few Link and Xyz materials
• Atlantean/Mermail searchers are the only way to find the engine if hand traps are used first

Recommended changes

Evidence & confidence

• Verified: Legality: Ash Blossom and Dominus Impulse at 3 copies vs limit 2; Solemn, Droll, Skill Drain, Card Destruction at Limited 1 copy each; Main 55, Extra 15, Side 0; 9 hand traps; Extra Deck has 2800-3000 ATK bosses
• Inferred: Starter probability ~0.83 and hand-trap probability ~0.68 (hypergeometric); Engine redundancy and recovery routes from card text
• Provisional: Meta power and matchup fit (no tournament or metagame data)
• 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 (going-first/second, matchup, brick rate) Meta Power is Provisional unless a dated metagame sample is supplied