Ursarctic Deck #764580 — Yu-Gi-Oh! OCG

59 Main, 15 Extra, incl. Crystal Girl x3, Gameciel, the Sea Turtle Kaiju x3, Mulcharmy Fuwalos x3. Created Oct 12, 2026 by YGO Mod.

Deck Ursarctic OCG

Created by: YGO Mod (20517634)

Created On: 10/12/2026

 
 


Official AI Deck Power Analysis
MidrangeConfidence: LowEvaluated Oct 20, 2026
25± 10/ 100
Power Score
Structural 56
Reliability 50
Going First 58
Going Second 52

Deck — Deck Power Evaluation

Final Contextual Deck Power: 25/100 (±10 · Confidence: Low)

Overall score Value
Structural Deck Power 55.8
Going First 58
Going Second 52
Meta Power provisional
Tournament Reliability 50
  • Primary strategy: Midrange
  • Secondary strategies: Toolbox, Stun
  • Format: ocg

Legality

Main 59 / Extra 15 / Side 0 — status: Illegal. 5 violation(s).

Identity & game plan

  • Win condition: Ursarctic Synchro chains (Grand Chariot, Septentrion, Polar Star) that Special Summon multiple monsters off Ursarctic Big Dipper and Ursarctic Radiation; Hand-trap and negation-protected Synchro boards with Trishula, Lancea and Psychic End Punisher as non-archetype finishers
  • Turn 1 (going first): Open with a searcher (Ursatron Alpha, Mikpolar, Miktanus) plus a level 7+ Tribute enabler, then chain Ursarctic monsters into a Synchro boss over the next turn
  • Turn 2 (going second): Hold Ash Blossom, Ghost Ogre, Ghost Belle or Droll to protect the first Special Summon, then convert the Ursarctic monsters that survive into a Synchro board
  • Recovery: Ursarctic Departure and Ursarctic Radiation return Ursarctic cards from the GY, and Ghost Belle recurs from the GY when banished or sent there
  • After siding: Not evaluable: the list has no Side Deck, so there is no post-side plan

Why it scores here

The deck reliably opens an Ursarctic starter: 27 Ursarctic-named copies give about 0.96 odds of at least one in a 5-card opening hand, and 14 search-text cards add redundancy (Inferred). Its Synchro engine (15 Synchro cards, 11 distinct) and recursion through Departure, Radiation and Ghost Belle support a multi-summon conversion plan, but no recorded boards exist, so conversion and median output are text-based estimates only. Interaction is dense (11 hand traps, 16 negation-text and 27 removal-text cards), which earns the endboard and going-second scores. Popularity and archetype usage did not earn points, the list is Illegal, and the score is capped at theoretical/structural-only. The score comes from the deck system, not from averaging card scores.

Dimension scores

# Dimension Score Evidence
D1 Engine Accessibility & Consistency 68 P(at least one Ursarctic-named card in a 5-card opening hand) ≈ 0.96; the single-copy starter odds are only about 0.24 per card (Inferred)
D2 Opening-Hand Quality & Brick Management 50 18 spells and 21 level-0 cards in a 59-card Main Deck, with 11 hand traps and 14 searchers, create some dead-draw risk (Inferred)
D3 Combo Conversion & Ceiling 58 No parseable boards; ceiling read from text of Big Dipper, Radiation and the Synchro Summons (Inferred)
D4 Combo Floor & Median Output 48 No recorded combos; median output is not measured and is estimated from text only (Inferred)
D5 Interruption Resilience & Route Redundancy 62 Redundant starters (Megapolar, Megatanus, Mikbilis), recursion and 11 hand traps keep multiple routes open after one disruption (Inferred)
D6 Resource Economy, Recovery & Grind 58 Ursarctic Departure, Radiation and Ghost Belle recur resources from the GY; no resource telemetry exists (Inferred)
D7 End-Board & Interaction Quality 68 11 hand traps, 16 negation-text cards and 27 removal-text cards give broad interaction, but two of the negation cards are Illegal copies (Verified legality, Inferred quality)
D8 Going-Second & Board-Breaking Power 60 Going-second value comes from Ash, Ghost Ogre, Ghost Belle and Droll plus board-breakers Lightning Storm, Dark Ruler No More and Harpie's Feather Duster (Inferred)
D9 Offensive Pressure & Closing Power 62 Septentrion and Grand Chariot reach 2700 to 3000 ATK at the Synchro level, but no end-board data exists (Verified stats, Inferred closing)
D10 Main Deck Efficiency & Flexibility 40 59 Main Deck cards at the 60-card maximum, with 21 tech and 18 spells, is low compactness (Verified composition)
D11 Extra Deck Efficiency & Coverage 65 15 Synchro cards in 11 distinct names; most are Ursarctic and the non-archetype finishers add flexibility (Verified composition)
D12 Side Deck Adaptability 10 No Side Deck is run, so there is no post-side adaptability (Verified: side_count 0)
D13 Matchup Coverage & Format Fit 50 No tournament link or dated metagame sample, so the score is Provisional (Provisional)
D14 Pilotability & Error Tolerance 40 Multi-step Synchro chains with several Tribute and Summon restrictions and many decision points (Inferred)

How the score was computed

Strategy profile: Midrange 85 / Toolbox 15 (approximate). Structural ≈ 55.8, Going First ≈ 58, Going Second ≈ 52, Meta = provisional, Tournament Reliability ≈ 50. Modifiers: banlist_exposure (-8); no_side_deck (-4); illegal_cap (0). Final formula: No reliable metagame: 0.80*Structural + 0.20*TournamentReliability + modifiers (-12) = 42.6, then capped to 25 because the list is Illegal (theoretical/structural-only)

Probability & combo summary

  • Opening a starter: P(≥1) ≈ 0.96 · 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 Ursarctic core (27 copies) gives high starter access in the opening hand
  • Synchro Extra Deck with redundant level-8 tuners and 2700 to 3000 ATK bosses
  • Broad interaction: 11 hand traps and 16 negation-text cards
  • Recursion through Departure, Radiation and Ghost Belle

Weaknesses

  • Illegal list: two Forbidden cards and three over-limit cards
  • No Side Deck, so no post-side adaptation
  • Low compactness: 21 tech cards and 18 spells in the Main Deck
  • No recorded combo data, so conversion is unmeasured

Critical choke points

  • Single Level 7+ Tribute enabler needed for most Ursarctic Special Summons
  • Synchro boss count depends on tuner survival through hand-trap and removal interaction
Priority Remove Add Reason
1 1 Called by the Grave, 1 Triple Tactics Talent, 1 Ash Blossom & Joyous Spring, 1 Dominus Impulse, 1 Droll & Lock Bird Legal replacements chosen by the deck's owner (for example one Ursarctic card or a legal hand trap) Remove Forbidden cards and reduce the three over-limit Semi-Limited and Limited copies so the list becomes legal
2 Low-impact tech slots from the Main Deck A 15-card Side Deck with targeted negation and removal Gives a post-side plan and lowers the 59-card Main Deck to a more compact build

Evidence & confidence

  • Verified: Legality violations: Forbidden cards run, copy limits exceeded; Main 59 / Extra 15 / Side 0 sizes and card stats from the card list; Archetype purity and role-tag counts from composition
  • Inferred: Starter access from hypergeometric odds (0.96 archetype core, 0.24 per 3-copy card); Interaction quality from card text and role tags; Going-first and going-second scores from text and structure
  • Provisional: Meta power and matchup fit (no dated metagame sample or tournament link)
  • Data gaps: No recorded combos: floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot record absent No win-rate telemetry exists in YGOVN Meta Power is Provisional without a dated metagame sample No Side Deck supplied, so post-side plan cannot be checked usage_statistics in_this_deck flags appear wrong for Extra Deck cards: Grand Chariot, Polar Star, Polari, Septentrion, Trishula, Chengying, Gymir, Dragite, Navy Dragon Mech, End Punisher and Lancea are in the Extra Deck in cards[] but are flagged missing, so core_present_pct 56 is unreliable and was not used

More OCG Info

Ursarctic

Ursarctic Breakdown

 
 

 

 

 

 

 

 
 

 

 
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