Herald Deck #773799 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 25/100 (±8 · Confidence: Low)

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

Legality

Main 40 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Fusion Summon a DARK Fairy boss (The First Darklord or Darklord Eveningstar) off Darklord and Gem-Knight material, then close with 3000-4000 ATK monsters; Gem-Knight Lady Rose Diamond / Lady Brilliant Diamond pressure via Fusion Summons and Gem-Knight recursion
• Turn 1 (going first): Open on Darklord searchers (Djehuty, Indulged Darklord, Gulgolet, Banishment) and Herald pairs to reach a Fusion Summon; hand traps are held back because Herald of Orange Light requires a second Fairy to discard
• Turn 2 (going second): Hold Herald of Green Light and Orange Light (hand traps) for the opponent's first Spell or monster effect, then rebuild through Darklord Dance or Mutiny in the Sky into a Fusion boss
• Recovery: Darklord Contact and Darklord Gulgolet/Indulged Darklord recur Darklord monsters from GY; Fallen Angel in Darkness and Darklord Rebellion clear the field; Banishment and Morningstar refill the hand
• After siding: No Side Deck is registered (side_count 0), so there is no evidenced post-side plan; this is a gap, not a strength

Why it scores here

The deck is scored as a connected system: its Darklord and Gem-Knight searchers (about 22 searcher-text cards, P of at least one in a 5-card opening hand near 0.99) make the Fusion engine likely to come online, and the Herald pair plus two Herald hand traps give a real going-second interaction layer. Its ceiling comes from The First Darklord and Darklord Eveningstar at 3000-4000 ATK, but the recorded-board evidence is absent, so combo conversion and median output are text-based inferences only. The deck is Illegal because it runs 3 copies of Herald of Orange Light against a Limited limit of 1; under the rubric that caps the score at 25 and the rest of the analysis is structural only. Archetype usage (all core cards present) and popularity were not credited as strength, and no card scores were averaged.

Dimension scores

How the score was computed

Strategy profile: Midrange primary, Stun secondary disclosed as informational only; weights applied from the Midrange profile. Structural ≈ 53, Going First ≈ 52, Going Second ≈ 57, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist exposure (-10). Final formula: Uncapped: 0.80*Structural(53) + 0.20*TournamentReliability(45) + Modifiers(-10) = ~41; Illegal deck capped to 25 per rubric (theoretical/structural-only). Meta Power provisional/null.

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.99 · 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 searcher density (22 searcher-text cards) gives high access to the Fusion engine
• Two Herald hand traps plus Buio and Sanctified Darklord give going-second interaction
• High-ATK Fusion closers (The First Darklord 4000, Luce 3500, Eveningstar 3000) provide a real finishing route

Weaknesses

• Deck is Illegal: 3 copies of a Limited (1-copy) card
• No Side Deck, so no post-side adaptation
• Fusion-only Extra Deck requires Fusion Spell or hand-material enablers, making the line fragile when those are stopped
• No recorded combos or win-rate data, so ceiling and median cannot be verified

Critical choke points

• Fusion Spell access (Mutiny in the Sky, Darklord Dance, Brilliant Fusion) as the single gate to every Extra Deck boss
• Fairy-restricted hand traps depend on a second Fairy in hand

Recommended changes

Evidence & confidence

• Verified: Main 40 / Extra 15 / Side 0 counts and copy histogram; Herald of Orange Light is Limited with legal copies 1 and runs 3 (Illegal); Card text and stats for the 40 main and 15 Extra cards
• Inferred: Searcher and hand-trap access from text plus hypergeometric odds; Interaction and going-second quality from card text; Pilotability and recovery reads
• Provisional: Meta and matchup fit (no dated metagame sample); Side deck adaptability (no post-side data)
• Data gaps: No combos supplied: combo floor/median/ceiling is text-only inference No tournament link: meta-share and per-pilot record absent No win-rate telemetry in YGOVN Meta Power provisional unless a dated metagame sample is supplied Usage statistics mark Extra Deck cards (Luce, The First Darklord, Seraphinite, Lady Rose/Brilliant Diamond, Aerial Eater, Duke of Demise, Magnum) as not in deck even though they are present in the Extra Deck list; the missing_core list is therefore unreliable and core_present_pct is understated No Side Deck registered