Melffy Deck #769377 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 56/100 (±8 · Confidence: Medium)

• Primary strategy: Midrange
• Secondary strategies: Toolbox, Tempo
• Format: ocg

Legality

Main 55 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Melffy Xyz/Fusion board pressure: Joyous Melffys direct-attack text, Melffy Godmommy and Mommy board presence, Divine Arsenal AA-ZEUS 3000 ATK (Inferred from card text; no recorded boards); Level 2 Beast Xyz chain into Melffy of the Forest and Joyous Melffys, with Melffys' Joyful Surprise as a Fusion follow-up (Inferred)
• Turn 1 (going first): Open a Melffy on-summon or search starter (Rabbys, Rescue Cat, Wally, Puppy) and chain Level 2 Beasts into Melffy Mommy or Godmommy; hold Dark Hole or Cosmic Cyclone for the opponent's board (Inferred)
• Turn 2 (going second): Use Effect Veiler, Skull Meister, Ghost Ogre and Artifact Lancea to answer the opponent's first summon or effect, then recover the Melffy on-summon bounce line (Inferred)
• Recovery: Melffy bounce-to-hand effects (Rabbys, Puppy, Wally, Catty, Pony, Pinny) rebuy Level 2 Beasts after a wipe; Footsteps and Hide-and-Seek recycle from the GY (Inferred)
• After siding: None: the deck runs 0 side cards, so there is no recorded post-side plan

Why it scores here

The deck is scored as a system, not as an average of its cards. Its main strength is that many of its Level 2 Beast starters (Rabbys, Puppy, Wally, Catty, Pony, Pinny) can bounce themselves back to hand after an opponent's summon and then summon again, so the engine keeps reappearing after disruption. Going-first starter access is estimated at about 0.83 from the hypergeometric draw odds (Inferred), and the 15 hand-trap copies (D.D. Crow, Artifact Lancea, Ghost Ogre, Skull Meister, Effect Veiler) give going-second interaction of about 0.87 in hand 6 (Inferred). The Xyz and Fusion Extra Deck (Mommy, Godmommy, Joyous Melffys, Joyful Surprise, Divine Arsenal) supplies the closing pressure, but no recorded boards exist, so the ceiling and median are text-only reads and carry low weight. The score is pulled down by a 41 percent exact-name archetype purity, a 0-card side deck, and the absence of any tournament or win-rate data. Usage-statistics popularity earned no points, and the stat table's inclusion flags are internally inconsistent for Extra Deck cards, so it was not used as evidence of strength.

Dimension scores

How the score was computed

Strategy profile: Midrange primary; D13 dropped and remaining weights renormalised by 95 (meta-neutral structural score). Structural ≈ 62, Going First ≈ 68, Going Second ≈ 64, Meta = provisional, Tournament Reliability ≈ 56. Modifiers: Off-archetype dilution (-2); Weak post-side plan (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional); Structural = 5854/95 ≈ 61.6 with D13 dropped; 0.80*61.6 + 0.20*56 = 60.5, minus 4 in modifiers = 56

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.83 · 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

• Level 2 Beast on-summon bounce-and-resummon starters give repeatable engine restarts after opponent summons
• Dense hand-trap and negation package (15 hand-trap copies) for going second
• Dark Hole and Cosmic Cyclone provide board clearing and backrow removal
• Large Extra Deck Xyz/Fusion coverage with multiple closing options
• All 55 Main Deck cards and 15 Extra Deck cards are Unlimited, so no banlist exposure

Weaknesses

• Exact-name archetype purity is 41.4 percent, so engine coherence depends on off-archetype support
• No side deck: nothing adapts across games
• Heavy reliance on text-only inference because no combos or win-rate data exist
• Usage-statistics inclusion flags disagree with the deck list for Extra Deck cards, so the core-coverage read is unreliable

Critical choke points

• Melffy Mommy has one copy and anchors the Godmommy and Joyous Melffys Xyz route
• Going-first Melffy starter access depends on about 16 starter copies in 55 cards

Recommended changes

Evidence & confidence

• Verified: Legal OCG 55/15/0 with all cards Unlimited; Exact-name archetype purity 29 of 70 copies (41.4 percent); Side deck is empty; Hand-trap group P(≥1 in hand 6) = 0.8676 from the export; total combos = 0 and tournament data unavailable
• Inferred: Starter access ≈ 0.83 going first; Level 2 Beast bounce-and-resummon restart lines provide resilience; Engine ceiling from text: Melffy Mommy to Godmommy material transfer and Joyous Melffys pressure; Interaction density from role tags and card text
• Provisional: Meta Power (null) and D13 matchup fit; Median and floor (D4) with no recorded boards
• 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 Usage statistics mark Melffy Godmommy, Mommy, Joyous Melffys, Merry Melffys and Melffy of the Forest as in this deck=false although the deck list runs them (copies 1 to 2); the stat table's card-id matching appears broken for Extra Deck cards, so core coverage (12 percent) is not trusted Usage statistics list 100 percent inclusion for many unrelated cards (Raigeki, Stardust Dragon, Dark Ruler No More, etc.), which is implausible for a single deck archetype; treated as unreliable No win-rate telemetry (going-first/second, matchup, brick/starter/OTK rates) Meta Power is provisional without a dated metagame sample