Mermail Deck #751269 — Yu-Gi-Oh! TCG
58 Main, 15 Extra, incl. Abyssrhine, the Atlantean Spirit x3, Atlantean Dragoons x3, First Penguin x3. Created Sep 13, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 09/13/2026
Main Deck (58)
- Abyssrhine, the Atlantean Spirit x3
- Atlantean Dragoons x3
- Atlantean Heavy Infantry x1
- Butterfly Fish x1
- First Penguin 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 Minstrel x1
- Gluttonous Reptolphin Greethys x1
- Anti-Magic Arrows x3
- Called by the Grave x1
- Forbidden Droplet x3
- Harpie's Feather Duster x1
- One for One x1
- Pot of Prosperity x1
- Pot of Sloth x2
- Triple Tactics Talent x1
- Triple Tactics Thrust x1
- Dominus Impulse x3
- Infinite Impermanence x3
Extra Deck (15)
- Haggard Lizardose x1
- Marincess Coral Anemone x1
- Mistar Boy x1
- Adamancipator Risen - Dragite x1
- Graydle Dragon x1
- Icejade Gymir Aegirine 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 x2
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35± 10/ 100
Power Score
Structural
59
Reliability
45
Going First
60
Going Second
58
Deck — Deck Power Evaluation
Final Contextual Deck Power: 35/100 (±10 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 59 |
| Going First | 60 |
| Going Second | 58 |
| Meta Power | provisional |
| Tournament Reliability | 45 |
- Primary strategy: Midrange
- Secondary strategies: Stun, Combo
- Format: tcg
Legality
Main 58 / Extra 15 / Side 0 — status: Illegal. 2 violation(s).
Identity & game plan
- Win condition: Atlantean/Abyss Xyz and Synchro boards (Poseidra Abyss, Abysstrite, Mermail Abyssgaios, Poseidra the Storming Atlantean) built from WATER monsters; Synchro beatsticks (Icejade Gymir Aegirine, Graydle Dragon, Moulinglacia) once the GY holds enough WATER monsters
- Turn 1 (going first): T1 Mermail Abyssteus or Neptabyss/Abyssrhine searches into an Atlantean or Mermail Xyz/Synchro line; Dominus Impulse and Ash Blossom are the first-turn interaction held up
- Turn 2 (going second): Hand traps (Ash Blossom, Infinite Impermanence, Dominus Impulse) answer the opponent's first summon, then the Abyss/Atlantean engine rebuilds through the GY recursion
- Recovery: Mermail Abyssteus, Abysspike, Mulcharmy Purulia and Atlantean Dragoons recur monsters from the GY and rebuild the field from one or two surviving cards
- After siding: Not evaluable: side_count is 0, so no post-side plan is present in the export
Why it scores here
The list reliably opens an Atlantean/Mermail starter about 90% of the time with five cards (archetype core P(≥1) ≈ 0.90, Inferred), and searchers and recursion keep the engine moving after a single interruption. Six hand traps and a 14-card negation text package give the deck real interaction density, and Poseidra Abyss and the 2800-ATK Synchro and Xyz bosses give it end-board pressure. Scoring is on the system, not the average of card scores, and popularity alone earned no points: the archetype's usage stats confirm the list is real, not that it is strong. The score is capped low because the list is illegal (two Semi-Limited cards at 3 copies against a legal limit of 2), and the combo, matchup and post-side data needed for a normal Final score are absent.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 72 | P(≥1 archetype-core card in a 5-card opening hand) ≈ 0.90 across 21 core copies; searcher text group P(≥1) ≈ 0.89 (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 60 | 58 main cards, 20 level-0 spell/trap slots and 14 non-engine tech cards; brick rate estimated from composition, not measured (Inferred) |
| D3 | Combo Conversion & Ceiling | 62 | No parseable boards; ceiling read from card text of Poseidra Abyss, Abysstrite and Abyssgaios chains only (Inferred) |
| D4 | Combo Floor & Median Output | 50 | Median output not measurable: combos_evidence has 0 scored boards; placed near neutral (Provisional) |
| D5 | Interruption Resilience & Route Redundancy | 62 | Six hand traps, multiple searchers and GY recursion (Abyssteus, Abysspike, Purulia) give more than one independent route (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 60 | Recursion-heavy GY engine with Atlantean/Abyss recursion and Dragoons regeneration; no resource telemetry (Inferred) |
| D7 | End-Board & Interaction Quality | 70 | 14 negation-text cards plus Ash Blossom, Infinite Impermanence, Dominus Impulse and Forbidden Droplet; layering read from text (Inferred) |
| D8 | Going-Second & Board-Breaking Power | 58 | Hand-trap probability on going-second P(≥1 of 6 hand traps in 6 cards) ≈ 0.50; no going-second boards recorded (Inferred) |
| D9 | Offensive Pressure & Closing Power | 65 | Multiple 2800-3000 ATK bosses (Poseidra Abyss, Coelacanth, Moulinglacia, Graydle Dragon) with direct-attack text on Atlantean Dragoons (Verified stat, Inferred closing) |
| D10 | Main Deck Efficiency & Flexibility | 50 | Exact archetype purity only 8.2%; 67 off-archetype copies and 13 tech slots dilute engine density (Verified composition) |
| D11 | Extra Deck Efficiency & Coverage | 55 | 15 Extra slots across Xyz, Synchro and Link with a broad mix of summon routes; no extra-deck access data (Inferred) |
| D12 | Side Deck Adaptability | 25 | side_count is 0, so no post-side construction exists to judge (Verified) |
| D13 | Matchup Coverage & Format Fit | 50 | tournament_context unavailable; no archetype meta-share in the export (Provisional) |
| D14 | Pilotability & Error Tolerance | 50 | Multi-step Xyz/Synchro lines with several decision points on each turn; complexity estimated from text (Inferred) |
How the score was computed
Strategy profile: balanced. Structural ≈ 59, Going First ≈ 60, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: illegal_copy_limit (-21); no_post_side (-3); no_combo_data (-2). Final formula: Illegal cap applied: uncapped 0.80*59 + 0.20*45 ≈ 56, capped to 35 for illegal list (Meta provisional)
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.9 · 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 is dense enough to open a starter about 90% of the time
- Six hand traps and 14 negation-text cards give multi-layer interaction
- Recursion from GY (Abyssteus, Abysspike, Purulia, Dragoons) gives resilience
- High-ATK Xyz and Synchro bosses provide closing power
Weaknesses
- Illegal copy count on Ash Blossom and Dominus Impulse
- Low exact-archetype purity (8.2%) with 67 off-archetype copies
- No side deck
- No recorded boards or matchup data to confirm the line works in practice
Critical choke points
- Ash Blossom and Dominus Impulse must be cut to legal counts; the fix changes the interaction count the score relies on
- Single-card starters such as Neptabyss and Abyssrhine are the first summon of most lines
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | 1 copy of Ash Blossom & Joyous Spring | a legal-count replacement (e.g., one more non-Semi-Limited hand trap or a core Atlantean monster) | Semi-Limited limit is 2 copies; the third copy makes the list illegal |
| 2 | 1 copy of Dominus Impulse | a legal-count replacement or a core Mermail/Atlantean card | Semi-Limited limit is 2 copies; the third copy makes the list illegal |
| 3 | off-archetype tech cards (e.g., Triple Tactics Thrust, Anti-Magic Arrows) | additional Atlantean/Mermail core copies | Raises exact-archetype purity and engine density |
| 4 | none | a 10-15 card side deck | Side count is 0; a side deck is needed for a complete best-of-3 plan |
Evidence & confidence
- Verified: Deck is Illegal: Ash Blossom and Dominus Impulse at 3 copies against a Semi-Limited limit of 2; Main 58 and Extra 15 are within the TCG size rules; Exact archetype purity 8.2%, 67 off-archetype copies; Side count 0
- Observed: Archetype usage stats show Mermail/Atlantean core cards at 100% inclusion
- Inferred: P(≥1 archetype-core in opening 5) ≈ 0.90; Hand-trap coverage on going-second ≈ 0.50; Interaction density from negation text; Recursion-based resilience and resource estimates
- Provisional: Meta Power is null: no dated metagame sample; Matchup fit and tournament reliability
- 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 in YGOVN for going-first/second, matchup or brick rates Meta Power is Provisional: no dated metagame sample No side deck: post-side plan cannot be assessed
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