Mermail Deck #775052 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±8 · Confidence: Low)

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

Legality

Main 57 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Atlantis/Atlantean board built from Neptabyss, Dragoons, Poseidra and Warchief, closed with Poseidra and Dragoon direct attacks (Inferred from card text; no combo data); Extra Deck Xyz/Link/Synchro boards (Abysstrite, Poseidra Abyss, Mermail Abyssgaios, Levia-Dragoon) (Inferred)
• Turn 1 (going first): Open on Neptabyss or Mulcharmy searcher lines and Call of Atlantis for the Atlantis monster, then extend into Xyz/Link (Inferred)
• Turn 2 (going second): Use Mulcharmy draw effects and hand traps (Ash Blossom, Infinite Impermanence, Solemn Judgment, Maxx C) to answer the opponent's summons, then rebuild the Atlantis engine (Inferred)
• Recovery: Recur Atlantean and Atlantis monsters from the GY via Warchief, Monster Arms and Deep Sea Minstrel (Inferred from text)
• After siding: Not evaluable: the deck has no Side Deck (0 cards), so no post-side plan exists

Why it scores here

The score comes from the system, not from averaging card scores. The 24-copy archetype core has a high chance of at least one piece in hand (about 0.94 by the supplied estimate), and Neptabyss with three copies gives a plausible starter route (Inferred). Interaction is the strongest area: ten hand traps and several Solemn and Ash Blossom effects give layered answers on both turns. The Extra Deck (Xyz, Link, Synchro) supplies pressure, and Dragoons and Poseidra can attack directly for closing power. The list is capped low because it is Illegal: Barrier Statue of the Torrent and Bahamut Shark are Forbidden in OCG and are run as 1 copy each. Popularity did not earn points: the core is in the usage stats, but archetype purity is only about 4 percent, with 69 off-archetype copies, so the engine is less coherent than the archetype label implies. There are no recorded combos, no guides, no tournament link, and no side deck, so the median and ceiling scores are text-based estimates.

Dimension scores

How the score was computed

Strategy profile: Midrange primary; Stun weights were not blended in, and the Midrange profile was used as-is. Structural ≈ 52, Going First ≈ 50, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist_exposure (-8). Final formula: No reliable metagame: 0.80*Structural(52) + 0.20*TournamentReliability(45) = 50.6; minus 8 banlist-exposure modifier = 42.6; capped at 30 because the deck is Illegal (Forbidden cards in format). Structural-only / theoretical read.

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.94 · 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 interaction suite (Solemn Judgment, Solemn Accusation, Ash Blossom, Infinite Impermanence, Dominus Impulse, Red Reboot, Maxx C)
• Strong going-second answers from Mulcharmy draws plus hand traps
• Extra Deck pressure from Poseidra Abyss, Abysstrite, Mermail Abyssgaios, Levia-Dragoon and Deep Sea Prima Donna (text-based)
• High archetype core coverage (about 94 percent open-in-hand estimate for the core group)

Weaknesses

• Illegal in OCG: two Forbidden cards (Barrier Statue of the Torrent, Bahamut Shark)
• Low archetype purity (4.2 percent exact name) and 69 off-archetype copies weaken engine coherence
• No side deck, so no post-side plan
• No recorded combos or guides, so ceiling and median cannot be checked
• Several sub-archetypes (Atlantis, Atlantean, Mulcharmy, Abyss-, Daedalus, Solemn) are mixed, which raises conflict risk

Critical choke points

• Barrier Statue of the Torrent and Bahamut Shark cannot be played in OCG as built
• Neptabyss is the only exact-name starter for the main engine (3 copies, about 0.24 at least one in hand of 5)
• Extra Deck summons depend on a few Xyz and Link pieces with no recorded backup

Recommended changes

Evidence & confidence

• Verified: Legality: Illegal, with Barrier Statue of the Torrent and Bahamut Shark Forbidden in OCG; Main 57, Extra 15, Side 0; size rules satisfied; Archetype purity 4.2 percent (3 exact, 69 off-archetype); Archetype core usage: 12 of 25 core cards present
• Inferred: Starter and core consistency from hypergeometric estimates; Interaction quality from card text; Going-first and going-second plans from text; Dimension scores D1 through D9 and D14
• Provisional: Meta Power (null, no dated metagame sample); Matchup and format fit (D13)
• 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 absent No win-rate telemetry (going-first/second, matchup, brick/starter rates) Meta Power provisional: no dated metagame sample No guides for the archetype (0 total) No side deck (0 cards) Deck title is null