Umi Deck #775236 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 32/100 (±8 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Stun, Tempo
• Format: ocg

Legality

Main 55 / Extra 14 / Side 0 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Umi board of WATER Link and Xyz monsters (Worldsea Dragon Zealantis, Azure Ocean Dragon Lord - Neo-Daedalus Rage, Super Starslayer TY-PHON) converting a stable board into attacks; Levia-Dragon of Atlantis - Daedalus and Warchief of Atlantis recursion through Atlantis and Umi effects
• Turn 1 (going first): Open on Umi-named starters (Atlantis, City of the Sea Dragon, Fish Sonar, Advent of Atlantis, Siren Vortex) and build toward a Link or Xyz boss while holding hand traps for the opponent's first interaction
• Turn 2 (going second): Use hand traps (Ash Blossom, Ghost Ogre, Nibiru, Droll & Lock Bird) to blank the opponent's first line, then rebuild from Mulcharmy and Umi searchers
• Recovery: Recover through Umi and Atlantis GY effects (Warchief, Levia-Dragon, Call of Atlantis) and Mulcharmy draw effects once the board is cleared
• After siding: No Side Deck is registered, so there is no post-side plan; the list is structurally unable to adjust between games

Why it scores here

This Umi list is scored as a system, not as an average of its cards: it reliably reaches a core Umi starter (P(at least one archetype-core card in a 5-card hand) ≈ 0.95, Inferred) and carries a dense interaction layer of about 10 hand traps, 13 negation-text cards and 14 removal-text cards, which lifts its interaction and going-second scores. Conversion and median output are weak because the export contains no recorded boards, so the combo ceiling and floor are text-only and scored low. The deck is spread across Umi, Atlantis, Daedalus, and Mulcharmy with only 14.5% exact-name purity, which costs engine coherence, and it has no Side Deck, which caps adaptability. Popularity did not earn points: the archetype usage data only confirms that a version of this shell is real, and the list is Illegal (three Ash Blossom copies in a Semi-Limited slot), so it receives a capped structural-only score.

Dimension scores

How the score was computed

Strategy profile: Balanced. Structural ≈ 52, Going First ≈ 50, Going Second ≈ 55, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: Illegal copy-limit violation (-10). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional), then Illegal cap via copy-limit modifier; theoretical/structural-only

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.95 · 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 layer: about 10 hand traps, 13 negation-text cards and 14 removal-text cards
• Reliable access to a core Umi starter in opening hands (~0.95, Inferred)
• Recursion through Umi and Atlantis GY effects supports rebuilding after disruption

Weaknesses

• Illegal as submitted: three Ash Blossom & Joyous Spring against a limit of two
• No Side Deck, so no post-side adaptation
• Low exact-name purity (14.5%); the engine is split across Atlantis, Daedalus, and Mulcharmy
• No recorded combos, so conversion and median output cannot be verified

Critical choke points

• The Atlantis / Umi field-spell and starter line: if the starter is not drawn, the engine does not come online
• Link and Xyz material access for the boss monsters

Recommended changes

Evidence & confidence

• Verified: Legality: 55 Main / 14 Extra / 0 Side; Ash Blossom 3 copies exceeds the OCG Semi-Limited limit of 2; Composition, copy histogram, archetype purity, and role-tag counts from the evidence file; Archetype usage statistics: 10 of 17 core cards present
• Inferred: P(≥1 archetype-core card in opening hand) ≈ 0.95; Hand-trap coverage ≈ 0.72 going-second; Interaction, recursion, and resilience scores from card text and role tags
• Provisional: Meta Power (no dated metagame sample); Matchup and format fit (no tournament context)
• Data gaps: No combos supplied: combo floor, median, and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot record are absent No win-rate telemetry for going-first, going-second, matchups, or brick rate Meta Power is provisional without a dated metagame sample No Side Deck is registered in the export