Light and Darkness Ritual Deck #772741 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 31/100 (±10 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Toolbox
• Format: ocg

Legality

Main 58 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Ritual Summon Black Chaos / Black Luster Soldier off Light and Darkness Ritual, or Special Summon Sacred Beast Phantasm boss monsters (Raviel, Hamon, Uria) and push with the Phantasm engine; Link and Fusion boss monsters from the Extra Deck (The Chaotic Phantasmal Sacred Beasts, Underworld Goddess of the Closed World, Mercurium)
• Turn 1 (going first): Opening-hand starters from the Sacred Beast and Light and Darkness Ritual engines, with hand traps held to protect the first combo; the deck has no single reliable T1 line in the evidence
• Turn 2 (going second): Hand traps (Ash Blossom, Ghost Ogre, Nibiru, Droll & Lock Bird) to disrupt the opponent's first summon chain, then a Ritual or Phantasm boss on the next turn
• Recovery: Searchers (Sacred Beasts Released, Martyr, Mind Shuffle, Ragged Records) and Mulcharmy draw effects to rebuild the hand after a disrupted opening
• After siding: Not evaluable: the deck runs no side deck (Side Deck size 0), so there is no post-side plan in the evidence

Why it scores here

The deck is scored as a system, not as an average of its cards. Its Light and Darkness Ritual core (Black Chaos, Black Luster Soldier, Magician of Dark Chaos, one Light and Darkness Ritual) and its Sacred Beast Phantasm engine (Thunderclap, Martyr, Released, Raviel, Hamon, Uria) each need their own starters, and the evidence shows exact-name archetype purity of only 13.7%, so the two engines compete for the same hand slots. The single copy of Light and Darkness Ritual gives only about 8.6% going first and 10.3% going second of seeing it in the opener, which keeps the consistency score low. Hand traps and negation text (10 hand traps, 7 negation cards) give real going-second interaction and the strongest dimension, but the list is 58 main cards with 12 singletons and no side deck, which limits adjustment. Popularity did not earn points: usage stats confirm the core is common but say nothing about strength, and no combos, guides, or tournament data exist to lift the floor or median. The deck is illegal as built (3 copies of Ash Blossom against a limit of 2), so it is capped and the score is theoretical/structural only.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 44.55, Going First ≈ 40, Going Second ≈ 48, Meta = provisional, Tournament Reliability ≈ 35. Modifiers: Engine conflict (Phantasm vs Light and Darkness Ritual vs Mulcharmy) (-4); Banlist exposure (-3); Illegal-list cap (-5). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) = 0.80*44.55 + 0.20*35 = 42.64; modifiers -12 (illegal cap) = 30.64, rounded to 31 and capped as theoretical/structural-only because the list is Illegal

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.24 · 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

• Ten hand traps plus negation-text cards give real going-second disruption
• The archetype core (Black Chaos, Black Luster Soldier, Ragged Records, Griffoh) is common and well represented (84.6% of core present)
• Many searchers (24) and draw effects help recovery across turns

Weaknesses

• Illegal as built: Ash Blossom is over its Semi-Limited copy limit
• Two competing engines (Phantasm and Light and Darkness Ritual) with exact-name purity of 13.7%
• Single-copy Light and Darkness Ritual gives low opener reliability for the ritual engine
• No side deck, so there is no post-side adaptation
• Missing core cards (S:P Little Knight, Chaos Angel) leave Extra Deck routes unsupported

Critical choke points

• Light and Darkness Ritual (1 copy) gates the Ritual route; P(>=1 in opener) ≈ 0.09 going first
• The Chaotic Phantasmal Sacred Beasts needs three Level 10 monsters, with no Chaos Angel support

Recommended changes

Evidence & confidence

• Verified: Deck is Illegal: Ash Blossom & Joyous Spring is run 3 times against a Semi-Limited limit of 2; Main 58 and Extra 15 are within the OCG size rules; Side 0 is legal; Droll & Lock Bird and S:P Little Knight are Limited and each run 1 copy (legal); Archetype core inclusion and per-card hand probabilities from the evidence pack
• Inferred: Consistency estimates from hypergeometric draws, including the 0.086 going-first probability for L&D Ritual; Engine conflict from exact-name purity of 13.7% and sub-archetype spread; Interaction quality from hand-trap and negation text counts; Score dimensions D1-D14 except the verified count-based ones
• Provisional: Meta Power and D13 matchup fit (no dated metagame sample supplied); Tournament Reliability (no tournament link or win-rate data)
• 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 are absent no win-rate telemetry for going-first/second, matchup, brick, or starter rates Meta Power is Provisional unless a dated metagame sample is supplied no guides attached to the archetype no side deck, so post-side scoring (D12) rests on composition alone