Archfiend Deck #772725 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 42/100 (±10 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Stun, Mechanic: Synchro
• Format: ocg

Legality

Main 40 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Synchro Summon Red Dragon Archfiend and its Red-named family (Red Supernova, Red Nova, Red Hypernova) to win through high-ATK attackers and Archfiend recursion; Bystial and Crimson Blade boss Synchros with banish-based removal and Quick-Effect negation
• Turn 1 (going first): Open Soul Resonator, Crimson Gaia or Bone Archfiend, search a Resonator or Red-named card, then Synchro Summon a boss while holding hand traps (Ash, Ghost Belle, Veiler, Infinite Impermanence) for the opponent's first interaction
• Turn 2 (going second): Use the 11 hand traps (Ash, Ghost Belle, Effect Veiler, Infinite Impermanence, Droll and Lock Bird) to answer the opponent's starter, then rebuild the board through Resonator and Archfiend recursion
• Recovery: Recover Resonator monsters from the GY (Synkron Resonator, Vision Resonator, Soul Resonator) and Archfiend monsters through Crimson Gaia and Bone Archfiend, then re-Synchro through the Extra Deck
• After siding: No side deck: the list has no post-side plan and cannot adjust after game one

Why it scores here

The deck is scored as a system: its Archfiend core (15 copies, P(at least one in opening 5) ≈ 0.92) and 17 searcher-text cards make the engine reliably reachable on turns 1 and 2, which is the strongest part of the rating. Its 11 hand traps give a ≈0.88 chance of at least one interaction card when going second, supporting resilience. Output is hard to quantify because the export has no recorded combos, so the combo conversion and median scores are text-based inferences and are kept modest. The Extra Deck's 15 Synchro bosses give broad closing power (several 3500 to 4500 ATK monsters), and the score does not come from Archfiend being a popular archetype or from averaging card scores. The deck is Illegal (Ash Blossom at 3 copies against a limit of 2) and has no side deck, so it is capped and the result is structural and theoretical only.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 55.8, Going First ≈ 55, Going Second ≈ 60, Meta = provisional, Tournament Reliability ≈ 48. Modifiers: Banlist and copy-limit exposure (-10); No side deck (-2). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional); Illegal-deck cap applied: 54.2 before modifiers, then -12 total

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.92 · 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

• Archetype core and searcher text give a reliable engine start (Inferred)
• 11 hand traps give layered interaction on both sides of the turn (Inferred)
• 15 Synchro Extra slots give broad closing coverage (Verified composition)

Weaknesses

• Illegal copy count: 3 Ash Blossom against a limit of 2 (Verified)
• Empty side deck: no post-side plan (Verified)
• Low archetype purity: 14.5% exact-name Archfiend, with many generic and off-archetype cards (Verified)

Critical choke points

• Synchro Summon requires a Tuner plus non-Tuner monsters, so losing the Tuner to one disruption can stop the whole line (Inferred)
• Ash Blossom and Ghost Belle are over or near limit, so a legal build would need to trim one copy (Verified)

Recommended changes

Evidence & confidence

• Verified: Main 40 and Extra 15 match the OCG size rules; Ash Blossom & Joyous Spring is 3 copies vs a legal limit of 2; Side deck is empty; Extra Deck is 15 Synchro monsters; Archetype core is 15 copies
• Inferred: P(≥1 archetype-core in hand 5) ≈ 0.92; P(≥1 hand trap in hand 6, going second) ≈ 0.88; Hand-trap interaction and recursion density from card text; Going-second and going-first estimates from text
• Provisional: Meta share and matchup fit (no dated sample)
• Data gaps: No combos supplied: combo floor, median, and ceiling are text-only inference No tournament link: meta share and per-pilot record absent No win-rate telemetry in YGOVN: going-first, going-second, matchup, and brick rates are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied No side deck: post-side behavior cannot be evaluated