Neo-Spacian Deck #789457 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 35/100 (±8 · Confidence: Low)

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

Legality

Main 45 / Extra 15 / Side 15 — status under the rules at evaluation time: Illegal. 1 violation(s).

Identity & game plan

• Win condition: Fusion Summon a high-ATK Elemental HERO or Neos-line Extra Deck monster (Neos, Cosmo Neos, Shining Neos Wingman, Contrast HERO Chaos) through Polymerization-family spells, Contact Fusion, or Neos Fusion, then attack through the board; Link and Fusion recursion through Xtra HERO and Favorite HERO monsters, with Masked HERO and Neo-Spacian bodies as material
• Turn 1 (going first): Open a searcher (A Hero Lives, Engage Neo Space, Mulcharmy Fuwalos) and use it to fetch a Polymerization-family spell, then fuse into a 2500-3000 ATK monster; keep Ash Blossom up for the opponent's first activation
• Turn 2 (going second): Hold Ash Blossom and Droll & Lock Bird to stop the opponent's first search or summon, then use Forbidden Droplet or Super Polymerization on their board and fuse through
• Recovery: Recurse Masked HERO Fountain and Mask Change from the Deck or Graveyard, and use Vision HERO Vyon and Elemental HERO Shadow Mist to add Polymerization or Change spells again
• After siding: Bring in Typhoon, Lightning Storm and Harpie's Feather Duster against backrow-heavy decks, and Ghost Ogre & Snow Rabbit against activated effects; the side deck is coherent, but Pot of Sloth and Mulcharmy Purulia are weak choices

Why it scores here

This list would be a strong Elemental HERO and Neo-Spacian build if it were legal, but the three copies of Ash Blossom & Joyous Spring break the Semi-Limited limit, so the score is capped and the evaluation is structural only. The engine is reasonably consistent: about 93% of openings contain at least one searcher or core starter, and the Extra Deck gives the deck a high ceiling with 3000-3500 ATK fusions and a flexible Neos and Contact route. The deck's floor is held back by the main deck's split across several archetypes (Elemental HERO, Neo-Spacian, Mulcharmy, Kuriboh, Contact, Change), which lowers exact-name purity and adds dead-card risk. No recorded boards exist for this deck, so the conversion and median scores rest on text reading and are labeled Inferred. The score comes from consistency, closing power and interaction on the system as a whole, not from averaging card scores and not from archetype popularity.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 58, Going First ≈ 55, Going Second ≈ 57, Meta = provisional, Tournament Reliability ≈ 52. Modifiers: banlist exposure (-6); engine conflicts (-3). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (-9) = 47.8, then capped at 35 because the legality status is Illegal (theoretical/structural-only)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.93 · key two-card combo ≈ — · full-brick estimate ≈ 0.07 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Dense searcher density (18 cards) keeps openings functional
• High-ATK Extra Deck tops (Neos, Cosmo Neos, Shining Neos Wingman, Contrast HERO Chaos) give strong closing power
• Multiple fusion routes (Polymerization, Miracle Fusion, Neos Fusion, Contact) give alternate paths
• Side deck targets backrow, activated effects and Spell/Trap-heavy boards

Weaknesses

• Illegal copy count of Ash Blossom & Joyous Spring must be fixed before the list can be scored normally
• Split across several archetypes lowers exact-name purity to 5%
• Only 2 Polymerization copies, so the fusion engine leans on a few single-copy cards
• Weak side choices (Pot of Sloth, Mulcharmy Purulia)

Critical choke points

• Polymerization-family access (only 2 Polymerization plus single Miracle Fusion, Super Polymerization and Neos Fusion)
• Ash Blossom & Joyous Spring copy limit (3 run against 2 allowed)
• Neos-line Extra Deck monsters that require Elemental HERO Neos in hand or field

Recommended changes

Evidence & confidence

• Verified: Main deck 45, Extra 15, Side 15 are within the OCG size rules; Ash Blossom & Joyous Spring is run at 3 copies against a Semi-Limited limit of 2 (illegal); Droll & Lock Bird, Harpie's Feather Duster and Reinforcement of the Army are Limited at 1 copy each (legal); Elemental HERO Neos, Contrast HERO Chaos and Cosmo Neos text confirmed from card data
• Inferred: About 93% of openings contain a searcher or core starter; Hand-trap and removal density gives a moderate interaction layer; Structural score 58 and going-first and going-second estimates
• Provisional: Meta power (no dated sample); Matchup fit and side deck performance
• Data gaps: No recorded boards, so the combo ceiling and median are text-only inference No tournament link, so archetype share and per-pilot records are absent No win-rate telemetry exists for going-first, going-second, matchup or brick rates Meta power is provisional unless a dated metagame sample is supplied Deck title is null, so the name is taken from the archetype