Atlantis, City of the Sea Dragon Deck #770522 — Yu-Gi-Oh! TCG
56 Main, 15 Extra, incl. First Penguin x3, Marincess Blue Tang x3, Mulcharmy Fuwalos x3. Created Oct 21, 2026 by YGO Mod.
Deck Atlantis, City of the Sea Dragon TCG
Created by: YGO Mod (20517634)
Created On: 10/21/2026
Main Deck (56)
- Coralianectes, the Luminous Cradle Dragon x1
- Droll & Lock Bird x1
- First Penguin x3
- Levia-Dragon of Atlantis - Daedalus x1
- Marincess Blue Tang x3
- Monster Arms of Atlantis x1
- Mulcharmy Fuwalos x3
- Mulcharmy Meowls x3
- Mulcharmy Purulia x3
- Siren Vortex of Atlantis x3
- Trickstar Aqua Angel x3
- Warchief of Atlantis x1
- Ash Blossom & Joyous Spring x3
- Deep Sea Minstrel x3
- Advent of Atlantis x2
- Atlantis, City of the Sea Dragon x1
- Call of Atlantis x2
- Cynet Mining x3
- Dark Ruler No More x3
- Marincess Dive x1
- Daedalus Maelstrom x1
- Dominus Impulse x3
- Infinite Impermanence x3
- Marincess Wave x1
- Solemn Accusation x3
- Virtue Stream x1
Extra Deck (15)
- Azure Ocean Dragon Lord - Neo-Daedalus Rage x2
- Levia-Dragoon - Daedalus x3
- Marincess Blue Slug x1
- Marincess Coral Anemone x2
- Marincess Coral Triangle x1
- Marincess Great Bubble Reef x1
- Marincess Sea Angel x1
- Mediclius the Extraordinary Power Patron x1
- Adamancipator Risen - Dragite x1
- Deep Sea Repetiteur x1
- LeVirtue Dragon x1
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 35/100 (±8 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 52 |
| Going First | 50 |
| Going Second | 55 |
| Meta Power | provisional |
| Tournament Reliability | 48 |
- Primary strategy: Midrange
- Secondary strategies: Stun, Toolbox
- Format: tcg
Legality
Main 56 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).
Identity & game plan
- Win condition: Umi / Atlantis Link-and-Synchro board built from Link Summons (Levia-Dragoon, Azure Ocean Dragon Lord, Marincess Great Bubble Reef) that converts into large ATK attackers (Mediclius 3000, Adamancipator Risen 3000).; Mulcharmy and Marincess draw and recursion engines that grind card advantage over a long game.
- Turn 1 (going first): Open a searcher or Atlantis starter (Advent of Atlantis, Call of Atlantis, Cynet Mining, Marincess Sea Angel), reach the Umi field, and protect with the 7 hand traps and negate-based Spells/Traps.
- Turn 2 (going second): Use Ash Blossom, Infinite Impermanence, Droll & Lock Bird, Solemn Accusation and Dominus Impulse to break the opponent's starter, then rebuild through Mulcharmy draw effects. Going second is the stronger seat on paper given 57% hand-trap coverage in a six-card hand.
- Recovery: Recycle from GY through Warchief of Atlantis, Marincess Coral Anemone and Monster Arms of Atlantis, and rebuild Link monsters from the Extra Deck.
- After siding: No Side Deck is registered, so there is no post-side plan. Best-of-3 play is not supported by this list.
Why it scores here
The deck would reliably open a searcher or Atlantis starter, with P(at least one searcher in a 5-card hand) ≈ 0.80 (Inferred). Its interaction package is dense, with about 20 negation texts, 14 removal texts and 7 hand traps, which gives it real resilience against an opponent's starter (Inferred). Its ceiling depends on Umi Link routes into 2600–3000 ATK attackers, but no recorded boards exist, so the ceiling and median are text-based estimates only. The score does not come from Atlantis being a popular archetype (no usage stats or tournament data exist), and it does not average card scores. It is capped low because the list is Illegal: three copies each of Ash Blossom and Dominus Impulse exceed the Semi-Limited limit of two, so the figure is theoretical and structural only.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 58 | P(≥1 searcher text in 5 cards) ≈ 0.80; P(≥1 copy of a 3-of starter in 5 cards) ≈ 0.25; engine requires a Link route, so access is moderate (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 52 | 14 distinct cards at 3 copies plus several 0-level Spells and many Link-only pieces raise brick and conflicting-hand risk; 7 hand traps help partly (Inferred) |
| D3 | Combo Conversion & Ceiling | 60 | No combos supplied; text supports an Umi Link route into 2600–3000 ATK monsters, which sets the ceiling (Inferred) |
| D4 | Combo Floor & Median Output | 42 | No recorded boards; the Link-dependent engine with many non-engine hand traps suggests a median well below the ceiling (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 60 | 7 hand traps plus Trap negates and two recursion routes give multiple independent lines after an interruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 55 | Mulcharmy draw-on-summon effects and Marincess recursion sustain card advantage in long games (Inferred) |
| D7 | End-Board & Interaction Quality | 62 | About 20 negation texts and 14 removal texts with layered Trap/Spell interaction give strong end-board interaction (Inferred) |
| D8 | Going-Second & Board-Breaking Power | 58 | Going second (six-card hand) gives P(≥1 hand trap) ≈ 0.57, which supports a strong counter-board when going second (Inferred) |
| D9 | Offensive Pressure & Closing Power | 60 | Link attackers at 2600–3000 ATK and Adamancipator Risen at 3000 ATK provide closing power once the Umi board is live (verified card text, Inferred conversion) |
| D10 | Main Deck Efficiency & Flexibility | 40 | Only 14% exact archetype purity; 61 off-archetype copies spread across Mulcharmy, Marincess, Daedalus, Dominus and Solemn reduce coherence (observed composition) |
| D11 | Extra Deck Efficiency & Coverage | 55 | 12 Link, 2 Synchro and 1 XYZ in the Extra Deck; most slots are used, but the Extra mix spreads across several sub-archetypes (observed composition) |
| D12 | Side Deck Adaptability | 5 | No Side Deck present, so no post-side adaptation is possible (verified, zero side count) |
| D13 | Matchup Coverage & Format Fit | 40 | No tournament or meta-share data; matchup fit is Provisional until a dated metagame sample is supplied (provisional) |
| D14 | Pilotability & Error Tolerance | 35 | Multiple engines (Atlantis/Umi, Mulcharmy, Marincess, Daedalus) with sequencing across Link, Synchro and GY effects make the deck hard to pilot (Inferred) |
How the score was computed
Strategy profile: Balanced (default; no single strategy profile applied because the primary read is Midrange with a Stun secondary and no recorded combos). Structural ≈ 52, Going First ≈ 50, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 48. Modifiers: banlist_exposure (-8); no_side_deck (-2); no_combo_evidence (-2). Final formula: No reliable metagame: 0.80*Structural(52) + 0.20*TournamentReliability(48) = 51.2; modifiers -12 → 39; Illegal cap applied → 35 (theoretical/structural-only)
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.8 · 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 negation and hand-trap package (7 hand traps, about 20 negation texts) gives strong interruption coverage
- Searcher density (about 15 texts, P ≈ 0.80 in a 5-card hand) supports reliable access to starters
- Multiple Link-and-Synchro attackers reach 2600–3000 ATK, which gives real closing power
Weaknesses
- Illegal copy counts: 3 copies each of two Semi-Limited cards
- Low archetype purity (14%) with about 61 off-archetype copies across five sub-archetypes
- No Side Deck, so no post-side adaptation
- Multi-engine sequencing is complex and error-prone
Critical choke points
- The Umi field (Atlantis, Advent, or Call) is needed for most Link routes, so losing it removes most of the engine
- Extra Deck Link monsters need exact material routes; a single disrupted Link Summon can strand the board
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | 1 copy of Ash Blossom & Joyous Spring | any non-restricted hand trap or searcher already in the Main Deck, or a Side-able replacement | Brings the list to the Semi-Limited copy limit of 2 and makes the deck legal |
| 2 | 1 copy of Dominus Impulse | a non-restricted card of the same role | Brings the list to the Semi-Limited copy limit of 2 and makes the deck legal |
| 3 | off-archetype support cards (Mulcharmy or Solemn copies) | more Atlantis or Umi-mentioning monsters and Spells | Raises archetype purity and engine coherence |
| 4 | none | a Side Deck of 10–15 cards | Adds post-side adaptability, which the list currently lacks entirely |
Evidence & confidence
- Verified: Legality: 3 copies each of Ash Blossom & Joyous Spring and Dominus Impulse exceed the Semi-Limited limit of 2 (Illegal); Main Deck 56 cards and Extra Deck 15 cards are within the TCG size rules; Side Deck is 0; Card text for the hand-trap, negation and searcher roles (regex-scaffold hints checked against excerpts); Archetype purity 14.1% and Extra Deck composition (12 Link, 2 Synchro, 1 XYZ)
- Observed: Composition counts: 26 distinct Main Deck cards, copy histogram 1×10 / 2×2 / 3×14
- Inferred: Searcher hypergeometric estimate P(≥1 in 5) ≈ 0.80; Hand-trap P(≥1 in going-second 6) ≈ 0.57; Going-second stronger than going-first on the interaction package; Umi Link routes as the primary win condition
- Provisional: Meta Power and D13 matchup fit, with no dated metagame sample; Tournament reliability, with no per-pilot or win-rate data
- Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No archetype usage statistics: core and meta-standard comparison unavailable No tournament link: archetype meta-share and per-pilot record absent No win-rate telemetry: going-first, going-second, matchup and brick rates are Inferred or Unknown Meta Power is Provisional without a dated metagame sample No Side Deck data
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