Fairy Tail Deck #774253 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 52/100 (±8 · Confidence: Medium)

• Primary strategy: Midrange
• Secondary strategies: Combo, Stun
• Format: master-duel

Legality

Main 40 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Extra Deck bosses from three related engines: Zoroa the Magistus Verethragna (2900 ATK), Aiwass (2000 ATK), Teller of Fairy Tails (1850 ATK, indestructible while Fairy Tail monsters are on the field), Endymion and Selene link monsters (1850 ATK), and Verre the Maid of Endymion (2800 ATK with Regulus on the field). Evidence is card text only; no recorded boards.; Direct attack: Fairy Tail Ball states that your Fairy Tail monsters can attack directly.
• Turn 1 (going first): Turn 1 Fairy Tail Ball to add a Fairy Tail monster, or Normal Summon Fairy Tail - Luna to add a 1850-ATK Spellcaster. Luna's 1850 ATK enables Fairy Tail - Matchgiru's Special Summon from hand or GY. Going first has no hand trap held up, so the opening relies on the searcher and one entry monster.
• Turn 2 (going second): Hold Infinite Impermanence, Ash Blossom & Joyous Spring, Effect Veiler, Ghost Ogre & Snow Rabbit or Droll & Lock Bird to answer the opponent's first summon or search. Then transition into the Magistus or Endymion extra-deck summon route on the following turn.
• Recovery: Recursion from the GY and banishment: Matchgiru is Special Summoned from the GY while a 1850-ATK Spellcaster is on the field, Once Upon a Fairy Tail can be Set from GY or banishment, Tails of the Fairy Tails equips from the GY, and Fairy Tail - Snow Special Summons itself from the GY by banishing 7 cards.
• After siding: Not applicable: Master Duel has no side deck, and side_count 0 is legal.

Why it scores here

The deck opens a functional line in most games: a 5-card hand has about an 85% chance of containing at least one of 12 entry cards (Fairy Tail Ball, Luna, Spenta, Regulus), though only about 10% of hands contain both Fairy Tail Ball and Luna. It converts into pressure through several extra-deck bosses, and its 13 hand traps give layered answers on the opponent's turn. The score is held down by the split engine: only 21.8% of main-deck copies are exact Fairy Tail cards, with 14 Magistus and 7 Endymion copies and 19 generic cards, so the lines do not reinforce each other. The score was built from consistency, median output, interaction and recovery as properties of the whole system, not from Fairy Tail's popularity or by averaging individual card scores; the absence of recorded boards and tournament data keeps the uncertainty wide.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 57, Going First ≈ 55, Going Second ≈ 63, Meta = provisional, Tournament Reliability ≈ 55. Modifiers: engine conflict across three sub-archetypes (-4); banlist exposure (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional, no dated sample) = 0.80*57 + 0.20*55 - 5 = 51.6, rounded to 52

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.85 · key two-card combo ≈ 0.1 · full-brick estimate ≈ 0.01 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Several starters across different turn-1 routes: Fairy Tail Ball, Luna, Spenta and Regulus, so a 5-card hand usually has an entry point.
• 13 hand traps with negation text gives redundant answers on the opponent's turn and strong going-second coverage.
• Recursion from the GY and banishment (Matchgiru, Once Upon a Fairy Tail, Tails of the Fairy Tails, Fairy Tail - Snow) supports recovery after disruption.
• Extra Deck has high-ATK closers (2900 and 2000 ATK bosses) and a Spellcaster-heavy Main Deck (33 of 40) that keeps Luna, Matchgiru and Verre enablers consistent.

Weaknesses

• Three archetype spines (Fairy Tail, Magistus, Endymion) with only 21.8% exact-name purity, so engines compete for the same Extra Deck slots and turns.
• Going-first hands can hold hand traps with no opponent action to answer, which makes the opener feel passive.
• Nine Extra Deck singles and 19 generic Main Deck cards dilute the engine and lower combo repeatability.
• No recorded boards, so the real conversion rate of the starters is unknown.

Critical choke points

• Fairy Tail Ball or Luna must be accessible for most lines; a hand with neither relies on Spenta or Regulus, which are off-spine for Fairy Tail boards.
• Matchgiru's Special Summon depends on a 1850-ATK Spellcaster already being on the field, so it is unavailable until Luna or Teller lands.

Recommended changes

Evidence & confidence

• Verified: Legal in Master Duel: 40 Main, 15 Extra, 0 Side, all copy limits met (Limited and Semi-Limited counts respected).; Copy histogram 12 singles, 5 doubles, 6 triples in the Main Deck.; Archetype purity: 12 exact Fairy Tail copies, 14 Magistus, 7 Endymion, 19 generic.
• Inferred: Opening-hand functional rates (0.85 entry-card hit, 0.10 two-card, 0.005 full brick) from hypergeometric estimates on a chosen card set.; Going-second hand-trap coverage of 0.92 from the pack's hypergeometric estimate.; Structural dimension scores from card text and composition, since no recorded boards exist.; Interaction and recovery reads from card text (hand traps, GY recursion, negation).
• Provisional: Meta Power is null: no dated metagame sample was supplied.; Tournament reliability and D13 matchup fit are assumptions without a tournament link.; D12 side deck is neutral because the format has no side deck.
• Data gaps: No recorded boards: combo floor, median and ceiling are text-only inference. Usage-stat matching conflict: Teller of Fairy Tails (2 copies), Fairy Tail - Wiccat (2 copies) and Weaver of Fairy Tails (1 copy) are in the card list but flagged in_this_deck false in usage_statistics; the pack's core_present_pct of 44 is therefore understated. Confirm the ref-to-card mapping for Extra Deck cards before using core coverage. No tournament link: archetype meta-share and pilot match record are absent. No win-rate telemetry: going-first, going-second, matchup and starter rates are Inferred or Unknown. Meta Power is Provisional without a dated metagame sample. No guides attached (guides_evidence total 0).