R.B. Deck #750649 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 56/100 (±6 · Confidence: Medium)

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

Legality

Main 47 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Extra-Deck link boards pressured by R.B. Brute Blues and big Extra bodies (Therion Regulus, Carnot, Machina Citadel, Super Starslayer TY-PHON), with R.B. Shepherd's Crook locking Machine monsters at 1500 ATK or less; Turn-2 push with a large body after hand-trap interaction (per the one available guide); Funk Dock LP gain as a slow grind
• Turn 1 (going first): Open a starter (Stage Landing, Funk Dock or Exceptional Schedule), search or summon R.B. monsters, link into Brute Blues or Shepherd's Crook, and hold Ash Blossom, Ghost Ogre or Impermanence for the first opposing effect
• Turn 2 (going second): Use a hand trap (Ash Blossom, Ghost Ogre or Impermanence) or Forbidden Droplet on the opponent's first engine, then rebuild the R.B. link board from the Deck and GY
• Recovery: Stage Landing banishes from the GY to protect R.B. monsters; Next Phase and Last Stand re-deploy R.B. monsters; Operation Test recurs a Level 3 or higher R.B. monster from the GY; Night Train searches Train pieces
• After siding: Not applicable: Master Duel has no side deck and this list runs 0 side cards

Why it scores here

The score is set by how the list works as a system, not by R.B. being a known archetype and not by averaging the cards' own scores. Nine R.B. or Train starters (Stage Landing, Funk Dock, Exceptional Schedule) give about a 67% chance of at least one in the opening five cards, so the deck usually gets a live engine by turn 2, though the link route is conditional on it. Seven hand traps plus Forbidden Droplet and the negation spells give strong interaction density and about a 64% chance of a hand trap in a six-card going-second hand, which is what carries the score. The ceiling is an Extra-Deck body that the guide describes as a turn-2 push, but no recorded boards exist, so the median is an inference and is marked as such. Exact-name purity is only 37.1%, with Train, Sky Striker, Machina, Therion, Scrap and Mulcharmy pieces competing for the same slots, which costs points. Popularity or usage stats were not counted toward the score.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 61, Going First ≈ 64, Going Second ≈ 61, Meta = provisional, Tournament Reliability ≈ 52. Modifiers: engine conflicts and low purity (-3). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional, no dated metagame sample)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.67 · 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

• Seven hand traps and Droplet give layered interaction
• LP economy and GY recursion sustain grind
• Extra Deck link coverage (8 R.B. link monsters) gives board options

Weaknesses

• Exact-name purity 37.1%, so engine coherence is diluted
• Many conditional summon-restriction cards raise brick rate
• Sky Striker link route depends on a single Limited spell (Hornet Drones)

Critical choke points

• Hornet Drones (1 copy, Limited) is the only Sky Striker Ace material source for the Sky Striker links
• Brute Blues and Shepherd's Crook (3 copies each) carry the R.B. link board; losing them removes the closing route

Recommended changes

Evidence & confidence

• Verified: Legal in Master Duel: 47 main, 15 extra, 0 side; 1 Limited card (Hornet Drones) at 1 copy; Exact-name R.B. copies 23; purity 37.1%; One guide describes turn-2 OTK with large bodies and a Shepherd-style Machine lock
• Inferred: Starter and hand-trap probabilities (hypergeometric); Ceiling from card text and guide; median set below ceiling; Interaction quality and going-second plan; Sky Striker link route depends on Hornet Drones
• Provisional: Meta power (null, no dated sample); Matchup and format fit (D13); Side-deck adaptability (D12) is not applicable in Master Duel
• Data gaps: no combos supplied — combo floor/median/ceiling is text-only inference no tournament link — archetype meta-share and per-pilot match record absent no win-rate telemetry exists in YGOVN — matchup and going-first/second results are Inferred or Unknown usage_statistics in_this_deck flags disagree with the cards list for R.B. Shepherd's Crook, Sky Striker Ace - Camellia, Sky Striker Ace - Kagari and Prototype Sky Striker Ace - Amatsu (all present in cards as extra-deck copies); core_present_pct 60 is likely understated archetype_core_group copies_in_deck 25 does not match the 23 exact-name R.B. copies in the deck; the 0.98 core-group probability is not relied on Meta Power is Provisional unless a dated metagame sample is supplied