D.D. Deck #773770 — Yu-Gi-Oh! Master Duel
40 Main, 15 Extra, incl. Gem-Armadillo x3, Gem-Knight Alexandrite x3, Gem-Turtle x3. Created Oct 24, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/24/2026
Main Deck (40)
- Gem-Armadillo x3
- Gem-Knight Alexandrite x3
- Prufinesse, the Tactical Trapper x2
- Santa Claws x2
- Gem-Turtle x3
- Gem-Knight Garnet x3
- Gem-Knight Sapphire x1
- Gem-Knight Tourmaline x1
- Gem-Knight Fusion x2
- Mystical Space Typhoon x3
- Overexaggeration x2
- Swords of Revealing Light x3
- Unexpected Dai x3
- Call of the Haunted x3
- Compulsory Evacuation Device x3
- D.D. Post x1
- Jelly Cannon x2
Extra Deck (15)
- Gem-Knight Amethyst x1
- Gem-Knight Ruby x3
- Gem-Knight Topaz x1
- Codebreaker Virus Swordsman x1
- Gaia Saber, the Lightning Shadow x1
- Imduk the World Chalice Dragon x1
- Ningirsu the World Chalice Warrior x1
- Sorcerer of Sebek x1
- Cairngorgon, Antiluminescent Knight x1
- Evigishki Merrowgeist x1
- Kachi Kochi Dragon x1
- Number 52: Diamond Crab King x1
- Number 80: Rhapsody in Berserk x1
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48± 8/ 100
Power Score
Structural
52
Reliability
47
Going First
56
Going Second
52
Deck — Deck Power Evaluation
Final Contextual Deck Power: 48/100 (±8 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 52 |
| Going First | 56 |
| Going Second | 52 |
| Meta Power | provisional |
| Tournament Reliability | 47 |
- Primary strategy: Midrange
- Secondary strategies: Toolbox, Fusion/Xyz/Link mechanic mix
- Format: master-duel
Legality
Main 40 / Extra 15 / Side 0 — status: Legal.
Identity & game plan
- Win condition: Gem-Knight Fusion boss (Gem-Knight Ruby 2500 ATK, Gem-Knight Topaz double attack) Fusion Summoned from Gem-Knight Garnet plus a Gem-Knight monster; Single-copy Link/Xyz finishers (Ningirsu, Gaia Saber, Diamond Crab King, Kachi Kochi Dragon) that need materials the main deck barely supplies
- Turn 1 (going first): Normal Summon Gem-Armadillo to search a Gem-Knight monster, or flip Gem-Turtle to search Gem-Knight Fusion; reach Gem-Knight Garnet plus a Gem-Knight monster for the Fusion boss
- Turn 2 (going second): Answer the opponent's first board with Mystical Space Typhoon, Swords of Revealing Light, Compulsory Evacuation Device or Call of the Haunted, then rebuild with Gem-Knight Fusion from hand (Inferred; no recorded boards)
- Recovery: Gem-Knight Fusion can be added back to hand from the Graveyard by banishing a Gem-Knight from the Graveyard; Unexpected Dai and Santa Claws give extra hand refill (Inferred from card text)
- After siding: No Side Deck in Master Duel (side count 0); no post-side plan exists, so D12 is provisional
Why it scores here
The deck's Gem-Knight core (Gem-Armadillo, Gem-Turtle, Gem-Knight Alexandrite, Gem-Knight Garnet, each at 3 copies) opens a functional Fusion route in a reasonable share of hands, with an opening-hand probability of about 0.34 per 3-copy starter and about 0.69 for at least one of the 8 searcher-text cards. Its interaction is spread across Mystical Space Typhoon, Swords of Revealing Light, Compulsory Evacuation Device and Call of the Haunted, which gives it a moderate end-board presence. Its offensive closing power comes from Gem-Knight Ruby and Topaz, which are strong bosses once they are summoned. The score does not come from averaging card power, and it does not reflect the D.D. archetype label: the list is almost entirely Gem-Knight with no D.D. core, and the Extra Deck holds ten single-copy off-archetype cards whose materials the main deck barely supplies. No combos, guides or tournament data were supplied, so the floor, median and ceiling are text-based inferences and confidence is Low.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 55 | P(at least 1 3-copy starter in 5 cards) ≈ 0.34; P(at least 1 of 8 searcher-text cards) ≈ 0.69; the core is 3-copy Gem- starters (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 50 | 14 non-engine Spell/Trap cards and 2 single-copy Normal Monsters dilute the hand; no hand traps, so some hands are functional but low-impact (Inferred) |
| D3 | Combo Conversion & Ceiling | 50 | No recorded boards exist (total_combos 0); the Garnet plus Gem-Knight Fusion route to Ruby or Topaz is read from card text only (Inferred) |
| D4 | Combo Floor & Median Output | 45 | No recorded boards, so no median or power distribution; the floor is estimated from the Fusion route and the non-engine spell/trap count (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 55 | Two search effects (Armadillo, Turtle) and Gem-Knight Fusion recursion give some route redundancy; no independent second engine is confirmed (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 50 | Gem-Knight Fusion recurs from the Graveyard and Dai, Santa Claws and D.D. Post offer some refill; no resource_signature data (Inferred from text) |
| D7 | End-Board & Interaction Quality | 60 | 16 removal-text cards with 0 hand traps and 0 negations; MST, Swords of Revealing Light and Compulsory Evacuation Device provide breadth (Inferred from text and flags) |
| D8 | Going-Second & Board-Breaking Power | 45 | No hand traps or floodgates; the board-breaking route depends on Fusion bosses surviving to attack, and going-second value is weaker than going-first (Inferred) |
| D9 | Offensive Pressure & Closing Power | 65 | Gem-Knight Ruby at 2500 ATK and Topaz with double attack give strong closing bosses; Link and Xyz finishers add reach (Verified stats, Inferred closing) |
| D10 | Main Deck Efficiency & Flexibility | 72 | 40 Main cards across 17 distinct names with 9 three-copy cards and 40/15/0 size, so the list is compact and consistent (Verified composition) |
| D11 | Extra Deck Efficiency & Coverage | 40 | Of 15 Extra cards, 5 are Gem-Knight Fusions at 3/1/1 copies and 10 are single-copy off-archetype Link/Xyz cards; several lack reliable materials in this main deck (Verified composition, Inferred playability) |
| D12 | Side Deck Adaptability | 30 | Master Duel has no Side Deck here (side count 0), so there is no post-side evidence; scored as provisional |
| D13 | Matchup Coverage & Format Fit | 50 | No tournament link and no archetype meta-share in the export; format fit cannot be established (Provisional) |
| D14 | Pilotability & Error Tolerance | 50 | Fusion chains with several Extra-Deck choices and one-of Link/Xyz options raise decision points, but the step count is moderate (Inferred) |
How the score was computed
Strategy profile: Midrange 100% (Toolbox considered only for the Extra-Deck mix; not blended into weights). Structural ≈ 52, Going First ≈ 56, Going Second ≈ 52, Meta = provisional, Tournament Reliability ≈ 47. Modifiers: Extra-Deck dilution / engine conflict (-3). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional, no dated metagame sample)
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.34 · 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
- Three-copy Gem-Knight core gives a consistent Fusion route
- Compact 40-card Main Deck with 9 three-copy cards and no unnecessary side slots
- Strong bosses (Gem-Knight Ruby 2500 ATK, Topaz double attack) for closing
- Four spell/trap removal or disruption cards with 3 copies each
Weaknesses
- Ten single-copy off-archetype Link/Xyz cards dilute the Extra Deck and are hard to reach
- No hand traps or negations to stop an opponent's first board
- Non-engine spells and traps (about 14 cards) dilute the opening hand
- Archetype label D.D. does not match the Gem-Knight card list
Critical choke points
- Gem-Knight Garnet plus a Gem-Knight monster are needed for Fusion; only 3 Garnets and 2 Gem-Knight Fusions exist as enablers
- Gem-Knight Fusion (2 copies) is the only Fusion-search spell in the Main Deck
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Number 52: Diamond Crab King | A third Gem-Knight Fusion (Main Deck copy limit allows 3) | Replaces a single-copy Xyz with a Fusion spell that matches the core engine and raises Fusion-route reliability (Inferred) |
| 2 | Ningirsu the World Chalice Warrior | A second Gem-Knight Tourmaline or Gem-Knight Sapphire | Ningirsu needs World Chalice monsters the list does not run; Gem-Knight Normal Monsters add Fusion material and starter density (Inferred) |
Evidence & confidence
- Verified: Legal Master Duel list: 40 Main, 15 Extra, 0 Side, no banned or over-limit cards; Card text and stats as listed in evidence; Archetype spread: 21 Gem- cards, 25 generic, 1 D.D.
- Inferred: Opening-hand probabilities applied to the starter and searcher groups; Fusion route and recursion read from card text; Interaction density from removal text flags; Going-first and going-second strength estimates
- Provisional: Meta power (no dated metagame sample); Matchup and format fit (no tournament link); Post-side plan (no Side Deck)
- Data gaps: No combos supplied, so combo floor, median and ceiling are text-only inference No tournament link, so archetype meta-share and per-pilot match record are absent Deck archetype is labeled D.D. but the card list is Gem-Knight; the label likely needs correcting in the database No win-rate telemetry (going-first/second, matchup, brick or starter rates) Meta Power is provisional without a dated metagame sample No Side Deck (Master Duel), so post-side performance cannot be scored
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