Mermail Deck #720787 — Yu-Gi-Oh! TCG
Created by: YGO Mod (20517634)
Created On: 06/14/2026
Main Deck (57)
- Abyssrhine, the Atlantean Spirit x3
- Atlantean Dragoons x3
- Atlantean Heavy Infantry x1
- Butterfly Fish x1
- Droll & Lock Bird x2
- First Penguin x2
- Gendo the Ascetic Monk x1
- 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 x3
- Superancient Deepsea King Coelacanth x1
- Testudo erat Numen x1
- Warlock of the Ice Barrier x1
- Ash Blossom & Joyous Spring x3
- Deep Sea Minstrel x1
- Gluttonous Reptolphin Greethys x1
- Called by the Grave x1
- Crossout Designator x1
- Forbidden Droplet x3
- Harpie's Feather Duster x1
- Lightning Storm x2
- One for One x1
- Triple Tactics Talent x1
- Dominus Impulse x3
- Evenly Matched x3
Extra Deck (15)
- Haggard Lizardose x1
- Marincess Coral Anemone x1
- Mermail King - Neptabyss x1
- Mistar Boy x1
- Adamancipator Risen - Dragite x1
- Icejade Gymir Aegirine x1
- Ravenous Crocodragon Archethys x1
- Trishula, Dragon of the Ice Barrier x1
- White Aura Monoceros x1
- Deep Sea Prima Donna x1
- Deep Sea Repetiteur x1
- Abysstrite, the Atlantean Spirit x1
- LeVirtue Dragon x1
- Mermail Abyssgaios x1
- Poseidra Abyss, the Atlantean Dragon Lord x1
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35± 10/ 100
Power Score
Structural
49
Reliability
40
Going First
50
Going Second
48
Deck — Deck Power Evaluation
Final Contextual Deck Power: 35/100 (±10 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 49 |
| Going First | 50 |
| Going Second | 48 |
| Meta Power | provisional |
| Tournament Reliability | 40 |
- Primary strategy: Midrange
- Secondary strategies: Stun, Toolbox
- Format: tcg
Legality
Main 57 / Extra 15 / Side 0 — status: Illegal. 2 violation(s).
Identity & game plan
- Win condition: Atlantean and Mermail Xyz/Link/Synchro boss (Poseidra Abyss, Mermail Abyssgaios, Icejade Gymir Aegirine) built from WATER monsters; Mermail King - Neptabyss and Moulinglacia board pressure through WATER-GY recursion
- Turn 1 (going first): Open a WATER starter (Neptabyss, Abyssrhine, Mermail Abyssteus or Atlantean Dragoons), search the next Atlantean or Mermail piece, and reach a Synchro or Xyz boss while holding Ash Blossom or Evenly Matched for interaction
- Turn 2 (going second): Use Ash Blossom, Droll and Lock Bird and Dominus Impulse to slow the opponent's first summon, then continue through Atlantean recursion (Mermail Shadow Squad, Atlantean Heavy Infantry) into a boss
- Recovery: Recycle WATER monsters from the GY through Neptabyss, Abysspike and Moulinglacia summons and re-extend into a Link or Xyz boss
- After siding: Not evaluable: no side deck is present in the export
Why it scores here
The deck is scored as a system, not as an average of its cards. Its archetype core (Mermail, Atlantean, Abyss-) has a hypergeometric opening-hand access of about 0.92 for at least one core card, and searcher text covers about 0.84 of the list, so the engine usually comes online by turn 1 or 2. Its interaction package (Ash Blossom, Evenly Matched, Droll and Lock Bird, Dominus Impulse, Called by the Grave, Crossout Designator) supports a Stun-leaning midrange plan, but no recorded boards exist, so the ceiling and median remain text-only inferences. The deck is Illegal: Ash Blossom and Dominus Impulse are run three copies against a Semi-Limited limit of two, so it receives a capped, structural-only score rather than a normal Final Contextual score. Popularity was not credited, the three core Extra Deck cards with 100 percent usage inclusion are absent, and no side deck is present to earn adaptability points.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 62 | P(at least one archetype core card in opening 5) ≈ 0.92; searcher text present in ≈ 0.84 of opening hands (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 50 | 57 Main cards with 14 singletons and 17 tech cards; moderate brick and dead-card risk from the tech slots (Inferred) |
| D3 | Combo Conversion & Ceiling | 40 | No parseable combos; ceiling is a text-only read of Neptabyss, Abyssrhine and Mermail Abyssteus chains into Xyz and Synchro bosses (Inferred) |
| D4 | Combo Floor & Median Output | 35 | No recorded boards; median output cannot be measured and is estimated low from the tech-heavy split (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 55 | Multiple WATER-recursion routes and two hand traps give some redundancy against one interruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 50 | Recursion via WATER GY costs and Atlantean searchers offsets spent resources; no resource data (Inferred) |
| D7 | End-Board & Interaction Quality | 62 | Eight hand traps and twelve negation-text cards give layered interaction, but two copies exceed the legal limit (Verified legality, Inferred quality) |
| D8 | Going-Second & Board-Breaking Power | 50 | Dominus Impulse and Droll and Lock Bird contest the going-second board; no going-second split data (Inferred) |
| D9 | Offensive Pressure & Closing Power | 55 | Poseidra Abyss (3000 ATK), Icejade Gymir Aegirine (3000 ATK) and Mermail Abyssgaios (2800 ATK) give high closing power (Verified stats) |
| D10 | Main Deck Efficiency & Flexibility | 45 | 57 Main cards at 14 singletons with 17 tech cards and 66 off-exact-archetype copies lowers compactness (Verified composition) |
| D11 | Extra Deck Efficiency & Coverage | 55 | Extra Deck of 15 with 7 Synchro and 4 each of Xyz and Link; the 100 percent usage core (LeVirtue Dragon, Abysstrite) is missing (Verified usage) |
| D12 | Side Deck Adaptability | 15 | No side deck in the export; adaptability cannot be scored beyond a floor (Verified) |
| D13 | Matchup Coverage & Format Fit | 40 | No tournament link or dated meta sample; format fit is Provisional (Provisional) |
| D14 | Pilotability & Error Tolerance | 50 | Multi-step chains through several WATER recursion effects with many once-per-turn choices; average pilotability (Inferred) |
How the score was computed
Strategy profile: Midrange primary; Stun secondary at about one third weight. Structural ≈ 49, Going First ≈ 50, Going Second ≈ 48, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: illegal_copy_limit (-8); no_side_deck (-4). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) = 47, then illegal-deck modifiers -12 → 35 (theoretical / structural-only)
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.92 · 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
- Archetype core access is high (about 0.92 for at least one core card in an opening 5)
- Layered interaction: eight hand traps plus negation and removal text
- Strong Synchro, Xyz and Link closing bosses at 2800 to 3000 ATK
Weaknesses
- Illegal as built: two cards exceed the Semi-Limited copy limit
- No side deck
- Missing 100 percent usage Extra Deck cores (LeVirtue Dragon, Abysstrite, Xyz Armor Torpedo)
- High tech count dilutes the engine (17 tech cards and 14 singletons)
Critical choke points
- Any single Atlantean or Mermail starter that fails to summon blocks the Extra Deck boss route
- Two over-limit hand traps must be cut to two copies before the list is playable
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | One copy each of Ash Blossom & Joyous Spring and Dominus Impulse | Two copies is the legal ceiling; fill the freed slots with an existing engine card (e.g. a Mermail or Atlantean Level 4 or lower) | Makes the list legal so it can receive a normal score |
| 2 | One singleton tech card (e.g. Triple Tactics Talent) | A WATER Level 3 or 4 engine monster from the core | Raises starter density and lowers brick risk |
| 3 | None | A side deck of 0 to 15 cards covering the most common going-second boards | Gives a post-side plan for best-of-3 play |
Evidence & confidence
- Verified: Illegal status: Ash Blossom and Dominus Impulse at 3 copies vs legal 2; Main 57 and Extra 15 are within TCG size rules; Archetype usage core missing: LeVirtue Dragon, Abysstrite, Xyz Armor Torpedo at 100 percent inclusion; Exact archetype purity 8.3 percent; 66 off-archetype copies
- Inferred: Engine access about 0.92 from hypergeometric draw odds; Interaction layering from text and hand-trap flags; Brick risk from tech-card count and singletons
- Provisional: Meta and format fit (D13); no dated metagame sample; Tournament reliability; no tournament link
- Data gaps: No combos supplied, so combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot record absent No side deck in the export No win-rate or going-first/second telemetry
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