Mermail Deck #730402 — Yu-Gi-Oh! OCG
58 Main, 14 Extra, incl. Abyssrhine, the Atlantean Spirit x3, Atlantean Dragoons x3, Gameciel, the Sea Turtle Kaiju x3. Created Jul 6, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 07/06/2026
Main Deck (58)
- Abyssrhine, the Atlantean Spirit x3
- Atlantean Dragoons x3
- Atlantean Heavy Infantry x1
- Butterfly Fish x1
- Droll & Lock Bird x2
- Gameciel, the Sea Turtle Kaiju x3
- Mermail Abysspike x2
- Mermail Abyssteus x3
- Mermail Shadow Squad x3
- Moulinglacia the Elemental Lord x1
- Mulcharmy Fuwalos x3
- Mulcharmy Purulia x2
- Neptabyss, the Atlantean Prince x3
- Poseidra, the Storming Atlantean x2
- Superancient Deepsea King Coelacanth x1
- Testudo erat Numen x1
- Warlock of the Ice Barrier x1
- Ash Blossom & Joyous Spring x3
- Deep Sea Diva x1
- Deep Sea Minstrel x1
- Gluttonous Reptolphin Greethys x1
- Called by the Grave x1
- Forbidden Droplet x3
- Harpie's Feather Duster x1
- Lightning Storm x3
- Super Polymerization x3
- Triple Tactics Talent x1
- Dominus Impulse x3
- Solemn Judgment x1
- Solemn Strike x1
Extra Deck (14)
- Garura, Wings of Resonant Life x1
- Mudragon of the Swamp x1
- Marincess Coral Anemone x1
- Mermail Abyssalacia x1
- Mermail King - Neptabyss x1
- Adamancipator Risen - Dragite x1
- Icejade Gymir Aegirine x1
- Trishula, Dragon of the Ice Barrier x1
- White Aura Monoceros x1
- Deep Sea Prima Donna x1
- Abysstrite, the Atlantean Spirit x1
- LeVirtue Dragon x1
- Mermail Abyssgaios x1
- Poseidra Abyss, the Atlantean Dragon Lord x1
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66± 5/ 100
Power Score
Structural
67
Reliability
60
Going First
70
Going Second
78
Mermail (OCG) — Deck Power Evaluation
Final Contextual Deck Power: 66/100 (±5 · Confidence: Medium)
| Overall score | Value |
|---|---|
| Structural Deck Power | 67 |
| Going First | 70 |
| Going Second | 78 |
| Meta Power | provisional |
| Tournament Reliability | 60 |
- Primary strategy: Combo
- Secondary strategies: Blind-Second/OTK
- Format: ocg
Legality
Main 58 / Extra 14 / Side 0 — status: Legal.
Identity & game plan
- Win condition: Combo into WATER boss monsters (Abyssgaios, Poseidra Abyss, Trishula) with layered negation; Going-second board break with Lightning Storm/Droplet/Kaiju then OTK
- Turn 1 (going first): Use Neptabyss/Abyssteus/Shadow Squad to summon Level 7 WATER, make Abyssgaios or Poseidra Abyss, set Dominus Impulse/Solemn
- Turn 2 (going second): Deploy hand traps then clear with Lightning Storm/Forbidden Droplet/Kaiju/Super Poly and swing
- Recovery: Atlantean GY triggers, Mulcharmy draws, Deep Sea Diva/Minstrel revive
- After siding: None – side deck absent in export
Why it scores here
The deck reliably opens with a Mermail/Atlantean starter (archetype core live ~95% in 5-card hand) and converts into a WATER board with disruption, but its 58-card size and missing side lower consistency and post-side plans. Popularity of the Mermail archetype did not earn points; the score reflects system synergy, redundant starters, and interaction layers rather than averaging individual card scores. Ceiling includes Abyssgaios plus Trishula but median is modest because no recorded combos exist. Going-second power is strong via board breakers, balancing the overall evaluation.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 70 | Archetype core 25 copies yields P(open ≥1)=0.9482 in 5-card hand, but 58-card size dilutes individual 3-of starters to ~0.24 (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 65 | 58-card main with 14 singles includes some garnet-like singletons (Testudo) but heavy searcher density mitigates bricks (Inferred) |
| D3 | Combo Conversion & Ceiling | 75 | Extra deck contains Abyssgaios, Trishula, Dragite enabling multi-negate boards from WATER combos, ceiling high but unmeasured (Inferred) |
| D4 | Combo Floor & Median Output | 60 | No recorded combos; median expected to be single Level 7 xyz plus hand trap given redundant starters (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 68 | Multiple independent starters (Neptabyss, Abyssteus, Shadow Squad, Coelacanth) and GY triggers provide route redundancy (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 65 | Mulcharmy draw effects, Atlantean GY searches, and recursion via Deep Sea monsters support grind (Inferred) |
| D7 | End-Board & Interaction Quality | 72 | Abyssgaios negation, Dominus Impulse, Solemn, Droplet layer interaction; interaction density flags present (Inferred) |
| D8 | Going-Second & Board-Breaking Power | 80 | 3 Lightning Storm, 3 Forbidden Droplet, 3 Kaiju, Super Poly, Harpie Duster give strong six-card board-breaking (Inferred) |
| D9 | Offensive Pressure & Closing Power | 70 | Boss monsters 2800-3000 ATK and direct-attack enabler Dragoons enable closing (Inferred) |
| D10 | Main Deck Efficiency & Flexibility | 60 | 58-card main exceeds lean optimal, includes fringe singletons reducing efficiency (Inferred) |
| D11 | Extra Deck Efficiency & Coverage | 75 | 14 extra decks cover xyz/synchro/fusion/link all WATER-relevant, efficient usage (Verified) |
| D12 | Side Deck Adaptability | 20 | Side deck count 0, no post-side adaptability in provided list (Verified) |
| D13 | Matchup Coverage & Format Fit | 50 | No dated metagame sample; OCG environment assumed neutral (Provisional) |
| D14 | Pilotability & Error Tolerance | 65 | Combo lines require level management and discards; moderate decision points (Inferred) |
How the score was computed
Strategy profile: Combo. Structural ≈ 67, Going First ≈ 70, Going Second ≈ 78, Meta = provisional, Tournament Reliability ≈ 60. Modifiers: Main deck size 58 (-3); No side deck (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional)
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.95 · key two-card combo ≈ — · full-brick estimate ≈ 0.05 (all Inferred)
- Combo output: best PowerIndex —, median —, board-per-starter —
- Turn order: 0 going-first lines vs 0 going-second lines
Strengths
- Redundant WATER starters and GY triggers
- Strong going-second board-breaking suite
- Layered interaction via Abyssgaios, Dominus, Solemn
Weaknesses
- 58-card main deck dilutes consistency
- No side deck provided
- Some singleton bricks (Testudo, Warlock)
Critical choke points
- Requires discarding WATER monsters to activate key summons
- If opening only hand traps and no engine piece, cannot develop
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Testudo erat Numen | Mermail Abysspike (3rd copy) | Cut garnet, improve consistency of Mermail searches |
| 2 | Excess singletons (Warlock of Ice Barrier) | Extra deck staple (e.g., second Trishula) | Tighten main to ~45 cards and improve extra coverage |
| 3 | Side deck cards (Nibiru, Dimensional Barrier) | Provide post-side plan for best-of-3 |
Evidence & confidence
- Verified: Legality status Legal; Extra deck breakdown 14 cards; Side count 0; Restricted cards within copy limits; Usage statistics available
- Inferred: Core starter live probability; Combo ceiling from card text; Brick risk from 58-card size; Going-second power from board breakers; Recovery via GY triggers
- Provisional: Matchup coverage without dated metagame
- Data gaps: no combos supplied — combo floor/median/ceiling is text-only inference no tournament link — archetype meta-share and per-pilot match record absent no win-rate telemetry exists in YGOVN (going-first/second, matchup, game-level, brick/starter/OTK rates) — those signals are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied
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