Phantasm Spiral Deck #773470 — Yu-Gi-Oh! TCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 40/100 (±10 · Confidence: Low)

• Primary strategy: Combo
• Secondary strategies: Midrange
• Format: tcg

Legality

Main 53 / Extra 20 / Side 0 — status under the rules at evaluation time: Illegal. 3 violation(s).

Identity & game plan

• Win condition: Level 10 Sacred Beast Special Summons (Calamity of the Sacred Beasts, Infinity of the Sacred Beasts - Raviel, Lord of Phantasms, Inferno of the Sacred Beasts) into The Chaotic Phantasmal Sacred Beasts (5000 ATK) and Superdreadnought Rail Cannon Gustav Rocket (5000 ATK); Link and Xyz boss lines (Accesscode Talker, Underworld Goddess of the Closed World, Number 90: Galaxy-Eyes Photon Lord) and Power Patron / Ars Magna chains
• Turn 1 (going first): Search with Sacred Beasts Released / Card of the Soul into Level 10 Sacred Beast monsters, then Special Summon a boss via Martyr of the Sacred Beasts / Summoner of the Sacred Beasts (Inferred from card text)
• Turn 2 (going second): Hold Ash Blossom and Ghost Ogre & Snow Rabbit to break the opponent's first Quick Effect or search, then rebuild the same Sacred Beast chain (Inferred from card text)
• Recovery: Recur Sacred Beasts Released and Fallen Paradise of the Sacred Beasts from the GY and banishment to rebuild Level 10 Sacred Beast monsters (Inferred from card text)
• After siding: Not evaluable: the deck carries no side deck, so there is no post-side plan (data gap)

Why it scores here

This list is illegal in TCG on two counts: Ash Blossom & Joyous Spring is run three times against a limit of two, and the Extra Deck holds 20 cards against a maximum of 15. The structural read is that the Phantasm core (27 core-group copies, about 97.7% chance of at least one searcher-text card in a 5-card opening hand, Inferred) gives the engine reliable access, and the Level 10 Sacred Beast bosses and 5000-ATK finishers give it a real closing plan. Interaction is dense on paper (8 hand traps, 24 removal-text cards, 8 negation-text cards), but the list has no side deck, which gives it no post-side adaptation and drags down the going-second read. No combos were recorded, so the ceiling and median are text-only inferences and the floor score is low-confidence. The 40 final score is a theoretical, structural-only cap for an illegal list, and it was not built by averaging card scores or by the archetype's popularity.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 56, Going First ≈ 55, Going Second ≈ 50, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist exposure (-6); extra_deck_oversize (-6). Final formula: Illegal list: theoretical/structural-only. Structural 56 (Combo profile) → 0.80*56 + 0.20*45 ≈ 54 before modifiers; modifiers −12 → 42; capped at 40 for an illegal list. Meta Power is null (provisional).

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.98 · 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 (27 cards) gives very high access to the Phantasm core
• Eight hand traps and 24 removal-text cards provide layered interaction
• Level 10 Sacred Beast and Extra Deck boss finishers reach 4000–5000 ATK

Weaknesses

• Illegal list: Ash Blossom over copy limit and Extra Deck over size
• No side deck, so no post-side plan for best-of-3
• No recorded boards, so the combo floor and median are unverified

Critical choke points

• Level 10 Sacred Beast summon requirement (several bosses need a Sacred Beast card as the summon source)
• Ash Blossom over-limit copy: legal only after removing one copy

Recommended changes

Evidence & confidence

• Verified: Legality: Ash Blossom 3 copies vs legal 2; Extra Deck 20 vs maximum 15; Banlist status for Ash Blossom (Semi-Limited) and the five Limited cards; Card text and stats for the listed Phantasm, Ars Magna, Power Patron and Thunder Dragon cards; Hypergeometric draw odds (archetype core 0.9771 in a 5-card hand)
• Observed: Archetype usage statistics (12 of 25 core cards present; inclusion percentages)
• Inferred: Engine accessibility and brick estimates from card text and probabilities; Combo conversion and going-first/second plans from card text; Interaction and resilience read from hand-trap and removal text density
• Provisional: Meta Power (no dated metagame sample); Matchup and format fit (no tournament link)
• 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 absent no side deck: post-side plan cannot be evaluated no win-rate telemetry: going-first/second and matchup rates are unknown Meta Power is Provisional unless a dated metagame sample is supplied