Forbidden Deck #751040 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±8 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Toolbox, Xyz (Purrely)
• Format: master-duel

Legality

Main 50 / Extra 16 / Side 0 — status: Illegal. 4 violation(s).

Identity & game plan

• Win condition: Purrely Xyz boss monsters (Expurrely Happiness, Epurrely Beauty, Divine Arsenal AA-ZEUS) and Radiant Typhoon Fonix pressure, enabled by Purrely Level 1 starters; Forbidden Crown / Droplet negation to clear a single blocker, then attack with Xyz or Fonix
• Turn 1 (going first): Open a Purrely Level 1 starter (Purrely or Purrelyly) with a Quick-Play Memory, go to a Purrely Xyz, and use the Xyz's detach effects for interaction or a second Xyz
• Turn 2 (going second): Hold Droll and Maxx C or Dimension Shifter as hand traps, then rebuild through the Purrely Xyz engine off the opponent's board
• Recovery: Recover through Purrely recursion from the GY, Purrely searchers (Purrelyly, Epurrely Happiness, My Friend Purrely) and Radiant Typhoon Eldam and Swen searches; no Purrely draw engine is evidenced beyond Maxx C
• After siding: Not evaluable: the deck runs no Side Deck (0 cards), so there is no post-side plan

Why it scores here

The deck is Illegal as submitted (Extra Deck of 16 over the limit of 15, Purrely run 3 of 2, Radiant Typhoon Vision run 2 of 1, and Dimension Shifter, which is Forbidden, run once), so its final score is capped at 30 and the result is structural only. Its structure reads as a Purrely Xyz engine: 9 Purrely-family starters and Quick-Play Memories feed Level 1 Xyz bosses, supported by a Forbidden negation package (Crown, Droplet, Chalice) and hand traps (Droll and Maxx C). The archetype core group has about a 65% chance of at least one card in a 5-card opening hand, which supports starter access but not a guaranteed opener. Combo ceiling and median output are not measured because no boards were recorded, so those scores come from text reading only. Popularity and archetype share are not credited, the deck has no side deck, and no card scores were averaged into the result.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 49, Going First ≈ 50, Going Second ≈ 40, Meta = provisional, Tournament Reliability ≈ 35. Modifiers: banlist_exposure (-4); engine_conflicts (-2); weak_post_side_plan (-2). Final formula: No reliable metagame: 0.80*49 + 0.20*35 = 46.2; modifiers -8 gives 38; capped at 30 because the list is Illegal (theoretical/structural only)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.65 · 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 archetype core (9 copies) with about a 65% chance to open with a core card
• Layered negation package (Forbidden Crown, Droplet, Chalice) plus hand traps
• Xyz boss options with strong ATK (Fonix 3000, Divine Arsenal 3000, Expurrely Happiness 2500)
• Good searcher count (14) to find key pieces

Weaknesses

• Illegal list: Extra Deck over the limit and three copy-limit violations
• Forbidden Dimension Shifter in the list
• No Side Deck, so no adaptability
• Mixed sub-archetypes (Purrely, Radiant Typhoon, Forbidden) weaken coherence
• 33 Spell Cards with a heavy Quick-Play count raise brick and dead-draw risk

Critical choke points

• Needs a Purrely Level 1 starter to start the Xyz engine
• The Xyz line depends on a single Extra Deck Xyz being available
• Unverified Dimension Shifter legality makes the list itself uncertain

Recommended changes

Evidence & confidence

• Verified: Legality: Illegal; Extra Deck 16 over 15; Purrely 3 of 2; Radiant Typhoon Vision 2 of 1; Dimension Shifter 1 of 0 (Forbidden); Card text and stats for the listed cards; Archetype core group: 9 copies, 0.6463 chance of at least one in a 5-card opening hand
• Inferred: Engine accessibility and brick estimates from hypergeometric odds and text reading; Interaction quality from negation and hand-trap text; Going-first and going-second estimates from hand composition
• 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, going-second, matchup and brick rates are Inferred or Unknown No Side Deck; no post-side evidence Meta Power is Provisional unless a dated metagame sample is supplied