Melffy Deck #478317 — Yu-Gi-Oh! Master Duel
40 Main, 15 Extra, incl. Alpha, the Master of Beasts x3, Melffy Wally x3, Rescue Cat x3. Created Apr 29, 2025 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 04/29/2025
Main Deck (40)
- Alpha, the Master of Beasts x3
- Kalantosa, Mystical Beast of the Forest x1
- Kittytail, Mystical Beast of the Forest x1
- Maxx "C" x2
- Melffy Catty x1
- Melffy Fenny x1
- Melffy Pony x1
- Melffy Puppy x1
- Melffy Wally x3
- Peropero Cerperus x1
- Rescue Cat x3
- White Steed of the Floral Knights x3
- Ash Blossom & Joyous Spring x3
- Deep Sea Diva x3
- Hop Ear Squadron x1
- Melffy Pinny x1
- Valerifawn, Mystical Beast of the Forest x1
- Called by the Grave x2
- Crossout Designator x1
- Melffy Hide-and-Seek x1
- Obedience Schooled x3
- Infinite Impermanence x3
Extra Deck (15)
- Spright Elf x1
- Accel Synchro Stardust Dragon x1
- Baronne de Fleur x1
- Herald of the Arc Light x1
- Merry Melffys x1
- Satellite Warrior x1
- Stardust Dragon x1
- Vahram, the Magistus Divinity Dragon x1
- Desert Locusts x1
- Silvera, Wolf Tamer of the White Forest x1
- Divine Arsenal AA-ZEUS - Sky Thunder x1
- Gigantic Spright x1
- Joyous Melffys x1
- Melffy of the Forest x1
- Number 64: Ronin Raccoon Sandayu x1
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28± 10/ 100
Power Score
Structural
28
Reliability
30
Going First
30
Going Second
28
Deck — Deck Power Evaluation
Final Contextual Deck Power: 28/100 (±10 · Confidence: Medium)
| Overall score | Value |
|---|---|
| Structural Deck Power | 28 |
| Going First | 30 |
| Going Second | 28 |
| Meta Power | provisional |
| Tournament Reliability | 30 |
- Primary strategy: Control
- Secondary strategies: Toolbox
- Format: master-duel
Legality
Main 40 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 3 violation(s).
Identity & game plan
- Win condition: Control opponent board with hand traps and maintain a field of Melffy Beast monsters; Attempt to launch a mass‑summon combo via Obedience Schooled (illegal in this list)
- Turn 1 (going first): Set Infinite Impermanence and Ash Blossom, then use early Melffy monsters to trigger their hand‑trap effects
- Turn 2 (going second): Use hand traps to disrupt opponent’s plays, then summon Melffy monsters from the deck with effects like Rescue Cat or Wally
- Recovery: Searchers (Melffy Hide‑and‑Seek, Melffy Pony) and Graveyard recursion (Valerifawn, Kittytail) to refill resources after disruption
- After siding: No side deck; relies on in‑deck flexibility
Why it scores here
The deck tries to control the game with a dense suite of hand traps and Melffy‑type beatsticks, but its core starter Obedience Schooled is illegal, breaking the primary engine. Consistency suffers because many essential cards exceed copy limits, leading to a high brick probability. Interaction quality is moderate thanks to numerous negates, yet the lack of a side deck and missing key Melffy combo pieces limit recovery and adaptability. Overall the system is weak and illegal, so the final contextual power is capped low.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 30 | Only 33.8% chance of drawing any 3‑copy starter; Obedience Schooled illegal removes the main engine (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 25 | High copy histogram with 8 three‑copy cards creates many redundant draws; illegal copies increase brick risk (Inferred) |
| D3 | Combo Conversion & Ceiling | 20 | No recorded combo boards; best possible line relies on illegal Obedience Schooled (Inferred) |
| D4 | Combo Floor & Median Output | 20 | Median output inferred from hand‑trap suite, but without a reliable starter the floor stays low (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 25 | Redundancy limited to hand traps; loss of Obedience Schooled removes alternate line (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 30 | Searchers (Hide‑and‑Seek, Pony) provide some recovery, but illegal cards cut resource loops (Inferred) |
| D7 | End-Board & Interaction Quality | 45 | 18 negation/hand‑trap cards (Infinite Impermanence, Ash Blossom, etc.) give decent interaction density (Observed) |
| D8 | Going-Second & Board-Breaking Power | 20 | Going‑second board breaking relies on hand traps; illegal starter prevents strong board‑breakers (Inferred) |
| D9 | Offensive Pressure & Closing Power | 25 | Offensive pressure comes from Beast monsters with low ATK; no high‑ATK boss monsters (Inferred) |
| D10 | Main Deck Efficiency & Flexibility | 35 | Main deck 21.8% exact‑name purity; many off‑archetype cards dilute efficiency (Inferred) |
| D11 | Extra Deck Efficiency & Coverage | 40 | Extra deck contains useful Synchro/Xyz options, but only one Link slot and many are generic (Observed) |
| D12 | Side Deck Adaptability | 0 | Side deck count is zero, giving no adaptability after side‑step (Verified) |
| D13 | Matchup Coverage & Format Fit | 30 | No tournament data; archetype meta‑share unavailable, so fit is provisional (Provisional) |
| D14 | Pilotability & Error Tolerance | 20 | Complex hand‑trap chain and illegal key cards raise error tolerance; pilot must manage many decisions (Inferred) |
How the score was computed
Strategy profile: Control. Structural ≈ 28, Going First ≈ 30, Going Second ≈ 28, Meta = provisional, Tournament Reliability ≈ 30. Modifiers: Obedience Schooled (Forbidden, 3 copies over limit) (-5); Maxx "C" (Limited, 2 copies over limit) (-2); Called by the Grave (Limited, 2 copies over limit) (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional)
Probability & combo summary
- Opening a starter: P(≥1) ≈ — · 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
- Large suite of hand traps and negates
- Decent extra‑deck toolbox
Weaknesses
- Illegal core starter (Obedience Schooled) breaks engine
- Low archetype purity and many off‑archetype cards
- No side deck for adaptation
- High brick probability due to over‑copies
Critical choke points
- Obedience Schooled as the primary mass‑summon engine
- Reliance on hand‑trap consistency
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Obedience Schooled (Forbidden) | Forbidden Droplet (Limited) or Melffy of the Forest (XYZ) for legal mass‑summon | Replace illegal starter with a legal resource‑recovery engine |
| 2 | Extra copy of Maxx "C" | Additional hand trap such as Droll & Lock Bird | Stay within limited copy limit and improve consistency |
| 3 | Extra copy of Called by the Grave | Another searcher like Pot of Prosperity (if legal) or more Melffy Hide‑and‑Seek | Reduce limited‑card violations and keep grave‑yard interaction |
Evidence & confidence
- Verified: legality status; side deck count (0); card copy limits
- Observed: interaction density from hand‑trap count; extra‑deck breakdown
- Inferred: engine accessibility without Obedience Schooled; brick probability from copy histogram; resource loops from searcher text; pilotability from hand‑trap complexity
- Provisional: matchup fit due to missing tournament data
- 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 exists in YGOVN (going‑first/second, matchup, game‑level, brick/starter/OTK rates) — those signals are Inferred or Unknown
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