D.D. Deck #774216 — Yu-Gi-Oh! Master Duel
40 Main, 15 Extra, incl. Gem-Armadillo x3, Gem-Knight Alexandrite x3, Gem-Turtle x3. Created Oct 25, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/25/2026
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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Deck — Deck Power Evaluation
Final Contextual Deck Power: 48/100 (±8 · Confidence: Medium)
| Overall score | Value |
|---|---|
| Structural Deck Power | 55.7 |
| Going First | 60 |
| Going Second | 52 |
| Meta Power | provisional |
| Tournament Reliability | 50 |
- Primary strategy: Midrange
- Secondary strategies: Toolbox, Stun
- Format: master-duel
Legality
Main 40 / Extra 15 / Side 0 — status: Legal.
Identity & game plan
- Win condition: Gem-Knight Fusion lines (Gem-Knight Ruby, Gem-Knight Topaz, Gem-Knight Amethyst) converting a Gem-Knight Garnet / Tourmaline board into 2500-ATK or double-attack pressure; Gem-Knight Alexandrite and Gem-Knight Garnet normal-summon pressure with Gem-Knight Fusion recovery; Xyz and Link Extra Deck cards are present but have no reliable material route in the main deck
- Turn 1 (going first): Normal Summon Gem-Armadillo or Gem-Turtle to search a Gem-Knight or Gem-Knight Fusion, then Gem-Knight Fusion into a Ruby or Topaz; hold Compulsory Evacuation Device, Swords of Revealing Light or Mystical Space Typhoon for the opponent's first setup
- Turn 2 (going second): Use Overexaggeration, Jelly Cannon, Call of the Haunted and Mystical Space Typhoon to strip the opponent's first board, then rebuild with Gem-Knight Fusion and the Gem-Knight normal monsters; no hand traps are present
- Recovery: Gem-Knight Fusion recurs from the Graveyard by banishing a Gem-Knight, Prufinesse and D.D. Post feed the banished-card economy, and Gem-Knight Alexandrite can re-summon a Gem-Knight normal monster
- After siding: Not evaluable: the deck runs no Side Deck, so there is no post-side plan
Why it scores here
The deck opens a functional plan reliably: sixteen Level 4-or-searching starters (Gem-Armadillo, Gem-Turtle, Gem-Knight Alexandrite, Gem-Knight Garnet, Unexpected Dai) give a hypergeometric P(at least one starter in a 5-card opening) of roughly 0.93, though the 2-card bootstrap that drives the Gem-Knight Fusion route is Inferred rather than observed. It converts that plan into pressure through three Fusion Extra Deck monsters (Ruby, Topaz, Amethyst) and a broad interaction suite (Mystical Space Typhoon, Swords of Revealing Light, Compulsory Evacuation Device, Overexaggeration, Jelly Cannon, Call of the Haunted), which earns the interaction and resilience dimensions. Brick risk comes from situational cards such as Santa Claws, Call of the Haunted and Swords of Revealing Light, and from five Xyz and five Link Extra Deck cards that lack a reliable material route in this list, which pulls down consistency and Extra-Deck efficiency. No Side Deck, no recorded boards and no tournament link mean the score rests on structure and text, and popularity and archetype usage did not earn points; card scores were not averaged into the deck score.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 70 | P(>=1 starter in 5) ~0.93 across ~16 starter-capable cards; Gem-Knight Fusion 2-card bootstrap (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 50 | Situational cards (Santa Claws, Call of the Haunted, Swords of Revealing Light) and unreachable Xyz/Link Extra Deck cards raise brick risk (Inferred) |
| D3 | Combo Conversion & Ceiling | 60 | Fusion route to Ruby 2500 ATK and Topaz double attack; no recorded boards to confirm ceiling (Inferred) |
| D4 | Combo Floor & Median Output | 45 | No recorded boards; median output estimated from text only, with Normal-summon and search lines as the floor (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 60 | Multiple independent starters (Armadillo, Turtle, Alexandrite, Dai) plus traps that recover tempo after one disruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 62 | Gem-Knight Fusion recurs from the Graveyard and D.D. Post feeds the banished-card economy (Verified text, Inferred grind) |
| D7 | End-Board & Interaction Quality | 70 | Broad removal and negation-adjacent text across six spell/trap interaction cards, no hand traps (Verified text, Inferred quality) |
| D8 | Going-Second & Board-Breaking Power | 52 | Overexaggeration and Jelly Cannon handle the attack step, but no hand traps and no going-second board-breaking count (Inferred) |
| D9 | Offensive Pressure & Closing Power | 60 | Ruby 2500 ATK and Topaz double attack provide closing power, with no piercing or direct-damage density evidence (Inferred) |
| D10 | Main Deck Efficiency & Flexibility | 55 | 40 main cards across 17 distinct names with 9 triple-copy slots; exact-name archetype purity 1.8% spread across Gem- and generic cards (Verified composition, Inferred efficiency) |
| D11 | Extra Deck Efficiency & Coverage | 40 | Five Fusion, five Xyz and five Link Extra Deck cards; Link and Xyz routes lack material support in this list (Inferred) |
| D12 | Side Deck Adaptability | 5 | Side Deck is empty (0 cards); no post-side plan (Verified) |
| D13 | Matchup Coverage & Format Fit | 50 | No tournament link and no dated metagame sample; archetype meta-share absent (Provisional) |
| D14 | Pilotability & Error Tolerance | 45 | Multi-step Fusion lines and situational trap timing demand skill; no error-tolerance data (Inferred) |
How the score was computed
Strategy profile: 0.85 Midrange / 0.15 Stun. Structural ≈ 55.7, Going First ≈ 60, Going Second ≈ 52, Meta = provisional, Tournament Reliability ≈ 50. Modifiers: No side deck (-3); Engine conflicts in Extra Deck (-2); Extra Deck dependence on unrecoverable choke (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) + ContextModifiers = 0.80*55.7 + 0.20*50 - 7 = 47.6, rounded to 48
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.93 · 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
- Gem-Knight Fusion recursion and Gem-Knight searchers give a repeatable Fusion engine
- Broad spell/trap interaction across six cards covers several threat types
- Level 4 starter density supports Xyz access and normal-summon pressure
Weaknesses
- No side deck, so no post-side adaptation
- Five Xyz and five Link Extra Deck cards lack a reliable material route in this list
- No hand traps or floodgates, so going-second disruption relies on sorcery-speed or conditional traps
Critical choke points
- Gem-Knight Fusion is the only single-copy route into Ruby, Topaz and Amethyst
- Gem-Knight Garnet and Tourmaline are the only Fusion material options beyond Alexandrite
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Santa Claws (2 copies) | Side-deck-ready interaction or a second Gem-Knight searcher | Santa Claws needs an opponent monster to Tribute, so it is often dead in the opening hand |
| 2 | Extra Deck Link and Xyz cards without material support | Additional Level 4 normal monsters or Gem-Knight fusion materials | Improves Extra-Deck access and reduces dead Extra Deck slots |
| 3 | No side deck | A 6-10 card Side Deck with hand traps or anti-Fusion answers | Provides post-side adaptation for best-of-3 play |
Evidence & confidence
- Verified: Legal size and copy limits (40 main, 15 extra, 0 side); Card text for the 40 main and 15 extra cards; Gem-Knight archetype usage stat: Garnet and Ruby core cards present
- Inferred: Opening-hand starter probability of roughly 0.93; Brick risk from situational cards and unreachable Xyz/Link Extra Deck cards; Structural score of 55.7 from the Midrange profile
- Provisional: Meta Power (null, no dated metagame sample); Matchup and format fit (no tournament link)
- Data gaps: no combos supplied; combo floor, median and ceiling are text-only inference no tournament link; archetype meta-share and per-pilot match record absent no win-rate telemetry; going-first/second, matchup and brick rates are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied
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