Umi Deck #768285 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 35/100 (±10 · Confidence: Low)

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

Legality

Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 4 violation(s).

Identity & game plan

• Win condition: Umi Link/Fusion boss pressure (Azure Ocean Dragon Lord - Neo-Daedalus Rage, The Dragon that Devours the Dogma, Levia-Dragoon - Daedalus) produced by Atlantis-chain Special Summons; Levia-Dragon of Atlantis - Daedalus and Warchief of Atlantis recursion into repeated Umi Summons
• Turn 1 (going first): Opening Advent of Atlantis, First Penguin, Warchief or Call of Atlantis to place Atlantis, search WATER/Atlantis monsters, and build toward a Daedalus Link; hand traps are mostly idle on the play
• Turn 2 (going second): Six-card hand with a hand trap (Ash Blossom, Evenly Matched, Infinite Impermanence, Ghost Ogre) or Solemn/Dominus to answer the opponent's first summon, then the same Atlantis engine
• Recovery: Warchief and Call of Atlantis recur WATER monsters from the GY; Mulcharmy Fuwalos and Purulia draw when the hand is empty
• After siding: Not assessable: the deck has no Side Deck, so there is no post-side plan

Why it scores here

The deck is scored as a structural system with no combo or win-rate data, and the list is illegal as built, so the final value is a capped theoretical read and not a normal contextual score. Its engine is coherent: Atlantis, Umi and WATER-recursion cards feed several Link and Fusion bosses (Neo-Daedalus Rage, Dragon that Devours the Dogma, Levia-Dragoon), and the archetype core is present in 86 percent of opening hands on the play by hypergeometric estimate. The main weaknesses are the brick-prone cards (Lava Golem needs opposing monsters to tribute, Lightning Storm needs an empty field) and a deck built with 3 copies of four Semi-Limited cards. Popularity of the Umi archetype and its usage-stat core did not earn points, and card scores were not averaged into the deck score. Without a side deck and with no meta sample, the deck's post-side and matchup dimensions remain provisional.

Dimension scores

How the score was computed

Strategy profile: 100% Combo profile (Midrange secondary acknowledged but not blended). Structural ≈ 56, Going First ≈ 48, Going Second ≈ 56, Meta = provisional, Tournament Reliability ≈ 42. Modifiers: Banlist exposure (-8); Hard garnet / brick burden (-3). Final formula: Theoretical only: 0.80*Structural(56) + 0.20*TournamentReliability(42) + modifiers(-11) = 42, capped to 35 because the list is Illegal. Meta provisional.

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.25 · 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

• Coherent Atlantis/Umi engine with several Link and Fusion bosses that can be reached from the GY and hand
• Archetype core present in about 86 percent of opening hands on the play
• Layered interaction: 11 hand traps plus spell/trap negation and destruction
• Recursion (Warchief, Call of Atlantis, Fuwalos, Purulia) helps recover after disruption

Weaknesses

• Illegal as built: four Semi-Limited cards at 3 copies
• Lava Golem and Lightning Storm are conditional and can brick
• No Side Deck, so no best-of-3 adaptation
• High pilot complexity from chained Atlantis summon conditions
• Going first, many hand traps are dead

Critical choke points

• Atlantis Field Zone placement and Umi status: a single removal or negation on the field card can strand the engine
• Lack of a second engine route if the Daedalus Link is negated before resolution
• Four over-limit Semi-Limited cards: the list cannot be played in the current format until corrected

Recommended changes

Evidence & confidence

• Verified: Illegal: four Semi-Limited cards run 3 copies (limit 2); Main 55 / Extra 15 / Side 0 counts; Extra Deck breakdown: 5 Link, 6 Fusion, 3 Synchro, 1 XYZ; Archetype core inclusion 50 to 77 percent in usage stats
• Inferred: Archetype core P(>=1 in opening 5) = 0.856; Starter reliability and brick estimates from card text; Interaction density from text flags; Closing power from ATK values
• Provisional: Meta and matchup fit (no dated meta sample); Tournament reliability (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 win-rate telemetry (going-first/second, matchup, brick/starter/OTK rates) Meta Power is Provisional unless a dated metagame sample is supplied Deck title null