Naturia Deck #773534 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 48/100 (±8 · Confidence: Medium)

• Primary strategy: Midrange
• Secondary strategies: Control
• Format: master-duel

Legality

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

Identity & game plan

• Win condition: Synchro, Xyz and Fusion boss monsters (Underworld Goddess, Super Starslayer TY-PHON, Swordsoul Chengying, Baronne de Fleur) reached through Naturia and Runick Quick-Play engine spells; Runick Extra Deck summons from Runick Quick-Play spells, which skip the next Battle Phase, so the deck converts through interaction and board control rather than attacks
• Turn 1 (going first): Open a Naturia starter (Naturia Camellia, Naturia Mole Cricket or Naturia Sacred Tree) to set up an engine, then use Runick Quick-Play spells on the opponent's turn to remove or negate their key monster and extend into a Synchro or Xyz boss
• Turn 2 (going second): Use Droll & Lock Bird and Maxx "C" as hand traps to slow the opponent's draws and Runick Freezing Curses, Slumber or Destruction on their first board, then rebuild with Naturia recursion
• Recovery: Naturia Sacred Tree recovers a Naturia card from the Deck when sent to the GY, and Runick Fountain returns up to 3 Runick Quick-Play spells from the GY to the Deck to draw the same number of cards
• After siding: Not applicable: Master Duel has no side deck and the list runs 0 side cards, so no post-side adaptation exists

Why it scores here

The deck reliably opens its engine only partially: its three Naturia starters (Camellia, Mole Cricket, Sacred Tree) each have about a 34% chance of appearing in a 5-card going-first hand, and only 10 of 40 Main Deck cards are monsters, so the score is held down by starter access and hand quality. Its strongest contribution is interaction density: roughly ten Quick-Play Runick and Naturia removal, negation and hand-trap effects can be used on the opponent's turn, and that layering drives the end-board and resilience scores. Conversion is inferred from card text and Extra Deck boss strength, not from recorded boards, because the evidence contains zero combos, so the ceiling and median are both Inferred. Popularity did not earn points: the usage stats show the archetype core is standard, and the deck is scored as a system without averaging individual card scores. The most-played core card Naturia Beast is absent, and the Runick-skip-Battle-Phase cost and split Naturia/Runick engine lower the score.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 56, Going First ≈ 60, Going Second ≈ 52, Meta = provisional, Tournament Reliability ≈ 52. Modifiers: Battle Phase skip cost (-2); Extra Deck Runick dependence (-2); Engine split (-2); Banlist exposure (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional); Structural = 56.07, TR = 52, modifiers -7, so 0.80*56.07 + 0.20*52 - 7 = 48.26 rounded to 48

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.34 · 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

• Interaction density: about ten Quick-Play Runick and Naturia removal, negation and hand-trap effects that can be used on the opponent's turn
• Quick-Play heavy (23 Quick-Play spells), so the deck can respond without spending its own turn
• Recursion: Naturia Sacred Tree returns a Naturia card from the Deck and Runick Fountain recurs Quick-Play spells
• High-ATK Extra Deck bosses (Underworld Goddess, Chengying, Baronne de Fleur, TY-PHON)

Weaknesses

• Low monster count: 10 Main Deck monsters against 30 spells and traps, which raises brick and dead-hand risk
• Most Runick spells skip the next Battle Phase, which limits pressure
• Exact Naturia purity is 25.5% with a split Runick/Naturia engine
• No side deck and no tournament or combo evidence to confirm the deck works
• Missing 100%-inclusion core card Naturia Beast per usage stats

Critical choke points

• Naturia starters: Camellia and Mole Cricket each have only 0.3376 chance of being in a 5-card going-first hand
• Runick Extra Deck monsters (5 copies: Geri x2, Hugin x2, Sleipnir x1) needed for the Extra Deck summon modes of Runick spells
• Monster count: the engine needs a monster on board, and only 10 Main Deck monsters exist

Recommended changes

Evidence & confidence

• Verified: Legality: Legal, 40 Main, 15 Extra, 0 Side, no violations; Copy limits within banlist: 8 restricted cards at legal copy counts; Card texts for the Runick Quick-Play spells, Naturia engine cards and Extra Deck bosses; Usage stats: Naturia Beast 100% inclusion and absent in this list
• Observed: Hypergeometric draw odds: 0.3376 for 3-copy cards and 0.2372 for 2-copy cards at going-first hand 5; Naturia exact purity 25.5% and Runick 23 copies
• Inferred: Engine consistency and brick rate from monster count and spell mix; Ceiling and floor from card text, since there are no recorded boards; Interaction quality from text (negate, destroy, banish); Going-first and going-second profile
• Provisional: Meta Power: no dated metagame sample; Matchup fit and format fit (D13); Going-second matchup performance
• 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/second, matchup, brick and OTK rates are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied Extra Deck access probabilities were not computed in the evidence Master Duel has no side deck, so D12 has no post-side evidence