Shark Deck #763518 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

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

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

Legality

Main 60 / Extra 15 / Side 0 — status: Illegal. 5 violation(s).

Identity & game plan

• Win condition: Xyz boss monsters (Number 104 Masquerade variants, Number C104, Number 32/C32 Shark Drake) built from Umbral Horror and Barian's/Seventh support, backed by hand-trap protection; Mulcharmy draw-engine pressure through card advantage over a long game
• Turn 1 (going first): Open a Seventh/Barian's/Umbral Horror searcher, search Barian's Seventh Untopia or an Umbral Horror, and reach a Rank 4 or 5 Xyz; hold Ash Blossom and Infinite Impermanence as protection (theoretical, Illegal list)
• Turn 2 (going second): Use the 9 hand traps (Ash Blossom, Droll, Evenly Matched, Infinite Impermanence) to break the opponent's first combo, then rebuild a Xyz board from the Extra Deck (theoretical, Illegal list)
• Recovery: Recursion through Umbral Horror GY effects, Barian's Hope, and Seventh Ascension; Mulcharmy draws when the hand is full
• After siding: No Side Deck is present, so there is no post-side plan; best-of-3 adaptation is not evaluable

Why it scores here

The deck is a Xyz-centred mix of three to four sub-archetypes (Umbral Horror, Barian's/Seventh, Masquerade and Shark), with 72 of 75 non-Extra copies outside the exact Shark name, so its engine is held together by shared Xyz and search text rather than a single archetype. Its reliable parts are the core Umbral Horror and Barian's searchers (P(at least one core card in a 5-card opening hand) is about 0.88, Inferred) and dense interaction (9 hand traps and about 22 negation-text cards, P(at least one hand trap in a 6-card going-second hand) about 0.64, Inferred). Its floor and median output cannot be measured because no combos were supplied, so the combo dimensions are text-only inference. The deck is Illegal: five cards exceed their copy limits (Called by the Grave is Forbidden), so it receives a structural-only score capped at 30 and does not receive a normal Final Contextual score. The score comes from consistency, interaction and Extra Deck structure on the system, not from averaging card scores and not from the popularity of the Shark archetype.

Dimension scores

How the score was computed

Strategy profile: 100% Midrange; Toolbox secondary noted but not blended (Illegal deck). Structural ≈ 48, Going First ≈ 46, Going Second ≈ 52, Meta = provisional, Tournament Reliability ≈ 35. Modifiers: banlist_exposure (-8); engine_conflicts (-4). Final formula: Illegal deck: theoretical structural-only. Unmodified 0.80*Structural + 0.20*TournamentReliability ≈ 45, less -12 context modifiers ≈ 33, capped at 30 by the legality rule. Meta provisional.

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.88 · 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 interaction: 9 hand traps and about 22 negation-text cards
• Heavy search density (17 searcher-text cards) for consistency
• Substantial Extra Deck coverage across 15 Xyz monsters with high-ATK boss options

Weaknesses

• Illegal list: five cards exceed their copy limits, and one is Forbidden
• Very low exact archetype purity (4%): the engine is split across four sub-archetypes
• No Side Deck, so there is no post-side adaptation
• Wide Main Deck with many Level-0 and non-engine cards that can brick

Critical choke points

• Rank 4/5 Xyz summon depends on a small number of Level-4 and Level-5 materials
• Reliance on Number/Masquerade Extra Deck boss monsters for closing power
• Hand-trap protection is single-copy per card and stacks poorly against a single disruption

Recommended changes

Evidence & confidence

• Verified: Illegal status: five cards over copy limit (Seventh Tachyon, Ash Blossom, Dominus Impulse, Droll & Lock Bird, Called by the Grave); Main 60, Extra 15, Side 0 are within OCG size rules; Archetype purity: 3 exact Shark copies, 72 off-archetype; Banlist statuses: Forbidden, Limited and Semi-Limited as listed; Core archetype group: 20 copies
• Inferred: Opening-hand probabilities: P(core ≥1 in 5) ≈ 0.88; P(hand trap ≥1 in 6, going second) ≈ 0.64; Interaction density from card-text negation/removal counts; Engine coherence rated low from sub-archetype spread; Going-first and going-second plans from card text
• 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 pilot match record are absent No win-rate telemetry for going-first/second, matchup, or brick/starter rates Meta Power is Provisional unless a dated metagame sample is supplied No Side Deck, so best-of-3 adaptation cannot be evaluated