Mecha Phantom Beast Deck #775166 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±10 · Confidence: Low)

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

Legality

Main 42 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Sacred Beast Phantasm boss Extra Deck monsters (Raviel, Hamon, Chaotic Phantasmal Sacred Beasts, Gustav Rocket) built through Sacred Beast summon chains; Link and Fusion pressure from the Extra Deck once the board is established
• Turn 1 (going first): Open a Sacred Beast searcher or hand-trap-backed starter, search a Level 10 Sacred Beast through Thunderclap/Released-style searches, then Special Summon a Level 10 boss
• Turn 2 (going second): Use hand traps (Ash Blossom, Ghost Belle, Ghost Ogre, Infinite Impermanence, Droll & Lock Bird) to disrupt the opponent's engine, then summon a Sacred Beast boss through the same Level 10 route
• Recovery: Recover through Martyr of the Sacred Beasts and Fallen Paradise of the Sacred Beasts from the GY, plus Sacred Beasts Released recursion
• After siding: Not evaluable: the deck has no Side Deck, so no post-side plan exists

Why it scores here

The deck's structural score comes from its system, not from averaging card scores: a searcher-dense Sacred Beast engine (P(at least one searcher in opening 5) about 0.98 by the evidence) is backed by 13 hand-trap and negation cards that give strong going-second interaction. Its boss monsters (4000 to 5000 ATK) give real closing power, but the archetype is split across Phantasm, Sacred Beast, Train and Thunder Dragon with 0% exact-name purity, which hurts engine coherence. No recorded combos, guides, tournament data or side deck exist, so the floor, median and ceiling rest on text-only inference. The deck is Illegal because Ash Blossom & Joyous Spring runs 3 copies against an OCG limit of 2, so the score is capped at 30 and labelled theoretical/structural-only. Popularity and archetype usage did not earn points, and the deck has no evidence of real win rates.

Dimension scores

How the score was computed

Strategy profile: Balanced default used for structural scoring; Combo and Midrange profiles were considered for the blend. Structural ≈ 52, Going First ≈ 50, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: Banlist exposure (-6); No side deck (-4). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional), about 49.6 before the Illegal cap; capped at 30 because the deck is Illegal and therefore theoretical/structural-only

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.32 · 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 text (21 cards) gives reliable access to the Sacred Beast engine
• 13 hand traps and negation effects give strong going-second interaction
• Boss monsters at 4000 to 5000 ATK give real closing power

Weaknesses

• Illegal: Ash Blossom & Joyous Spring is run 3 times against an OCG limit of 2
• Archetype is split across Phantasm, Sacred Beast, Train and Thunder Dragon with 0% exact-name purity
• No Side Deck, so no post-side adaptability
• No recorded combos, guides or tournament data

Critical choke points

• The Level 10 Sacred Beast summon chain depends on a few Phantasm/Sacred Beast starters, each at 3 or fewer copies
• Illegal copy count on Ash Blossom means the list cannot be played in a sanctioned event as built

Recommended changes

Evidence & confidence

• Verified: Legality: 42 main, 15 extra, 0 side; Ash Blossom over copy limit (3 vs 2); Banlist statuses for Droll & Lock Bird, S:P Little Knight, Linkuriboh, Gustav Max (Limited) and Ash Blossom (Semi-Limited); Card stats and text for all 19 main and 13 extra distinct cards; Archetype purity counts and role-tag counts
• Observed: Usage stats show Droll & Lock Bird at 90% and Mulcharmy Fuwalos at 80% inclusion for this archetype
• Inferred: Starter access and hand-trap odds from hypergeometric estimates; Interaction quality from negation and removal text; Going-second disruption density; Ceiling and floor are text-only inference (no boards)
• Provisional: Meta Power is null: no dated metagame sample; D13 format fit is provisional
• Data gaps: no combos supplied, so combo floor, median and ceiling are text-only inference no tournament link, so archetype meta-share and per-pilot match record are absent no win-rate telemetry (going-first/second, matchup, brick/starter rates) Meta Power is provisional unless a dated metagame sample is supplied Deck title is null No Side Deck cards, so no post-side evidence