Melffy Deck #759231 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 38/100 (±12 · Confidence: Low)

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

Legality

Main 40 / Extra 15 / Side 0 — status: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Synchro, Xyz and Fusion boards built from Melffy Beast monsters that recur from hand or GY, with Joyous Melffys and Melffy Godmommy as the main closers; Accel Synchro Stardust Dragon and Stardust Dragon Extra Deck pressure, with Satellite Warrior and Desert Locusts as additional Extra Deck boards
• Turn 1 (going first): Open on Melffy Rabbys, Melffy Pinny, Melffy Wally or Melffy Footsteps to search or summon a second Beast, then Synchro or Xyz into Melffy Mommy or Joyous Melffys (text-derived, Inferred)
• Turn 2 (going second): Use the hand-trap and Beast recursion package (Ash Blossom, Ghost Ogre and Snow Rabbit, Effect Veiler, Maxx C, Droll and Lock Bird, Melffy Puppy and Catty bounce effects) to disrupt the opponent and still reach a Beast board (Inferred)
• Recovery: Return Melffy monsters to hand through Wally, Puppy, Catty, Pony and Pinny effects, then replay them and use Melffy Hide-and-Seek to draw while protecting Beasts from destruction (Inferred)
• After siding: Not evaluable: the export contains no side deck, so there is no post-side plan (data gap)

Why it scores here

The deck is scored as a system: a 40-card Main with 25 distinct cards and a 15-card Extra spanning Synchro, Xyz and Fusion, with a Melffy Beast engine that recurs from hand and GY. Consistency is moderate: P(at least one searcher-text card in a 5-card opening hand) is about 0.74 and P(at least one copy of the 4-copy archetype core) is about 0.43, both Inferred from the hypergeometric draw table. Interaction is comparatively strong on paper, with 9 negation-text cards and 7 hand traps, and about 0.71 P(at least one hand trap in a 6-card going-second hand), which lifts resilience and going-second scores. Combo ceiling and median output could not be measured because no recorded boards exist, so those scores rest on text reads only. The deck is Illegal because Triple Tactics Talent is Forbidden and run once, so it does not receive a normal Final Contextual score; the 38 shown is a theoretical, structural-only figure, and no score was derived from popularity, meta share or averaged card scores.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 51, Going First ≈ 48, Going Second ≈ 56, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist exposure (-12). Final formula: Theoretical, structural-only (deck Illegal): 0.80*Structural(51) + 0.20*TournamentReliability(45) = 50, then banlist-exposure modifier -12 = 38; Meta provisional

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.74 · 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 Beast recursion that keeps the engine alive after single removal or negation
• Seven hand traps and nine negation-text cards provide layered interaction
• Two-copy Extra Deck boards (Joyous Melffys, Godmommy, Stardust) give several closing routes

Weaknesses

• Illegal as built because of the Forbidden Triple Tactics Talent
• No side deck, so no post-side adaptability
• Many single-copy tech and interaction slots reduce consistency

Critical choke points

• The 4-copy Melffy core is hit only about 43 percent of the time in a 5-card hand
• Stardust and Joyous Melffys boards depend on specific Extra Deck materials that are single-copy

Recommended changes

Evidence & confidence

• Verified: Main 40, Extra 15, Side 0 meets OCG size rules; Triple Tactics Talent is Forbidden and run once, making the deck Illegal; Copy counts for Ash Blossom, Super Polymerization, Maxx C and Droll and Lock Bird are within limits
• Inferred: Searcher-text, core and hand-trap draw probabilities; Going-second hand-trap advantage; Melffy recursion as a resilience source
• Provisional: Meta power and matchup fit (no dated metagame); Post-side plan (no side deck)
• Data gaps: No combos supplied, so floor, median and ceiling are text-only No tournament link, so no archetype meta share or pilot record No win-rate telemetry for going-first, going-second, matchup or brick rates No side deck exported Meta Power is provisional without a dated metagame sample