Fossil Deck #418192 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 25/100 (±8 · Confidence: Low)

• Primary strategy: Toolbox
• Secondary strategies: Control, Stun
• Format: ocg

Legality

Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 6 violation(s).

Identity & game plan

• Win condition: Fusion Summon from the 15-card Extra Deck (Fusion Monsters only) to build a board, backed by the removal and negation traps; Pot-based card advantage (Pot of Duality, Pot of Desires, Pot of Prosperity) feeding a long game
• Turn 1 (going first): Open with a searcher or draw spell, look for a Polymerization-style Fusion route, and hold Solemn-style negation for the opponent's first Summon or Spell/Trap
• Turn 2 (going second): Use negation and removal traps to slow the opponent's first board, then Fusion Summon through the remaining resources
• Recovery: Rebuild from the Graveyard through the Fusion Monsters' recursion text and the Pot draws
• After siding: No side deck is registered, so there is no post-side plan

Why it scores here

The deck is scored as a system and not as an average of its cards. As listed it cannot be played legally in OCG: it runs three copies of Fossil Dyna Pachycephalo and copies of other Forbidden cards, so the structural score is a theoretical read only. Its strongest feature is the heavy negation package (multiple Solemn-style and removal traps), which gives a real interaction layer. Its weaknesses are a thin monster count (10 Effect Monsters in 55 main-deck cards, with 45 cards at Level 0), a Fusion engine that needs Polymerization-style access that is not reliable in the opening hand, and no archetype core, since none of the 14 archetype-standard cards are present. Popularity of the archetype did not earn any points, and the score is capped low because of the illegal copy counts and banned cards.

Dimension scores

How the score was computed

Strategy profile: Toolbox. Structural ≈ 36, Going First ≈ 33, Going Second ≈ 30, Meta = provisional, Tournament Reliability ≈ 30. Modifiers: banlist exposure (-8). Final formula: 0.80*Structural(36) + 0.20*TournamentReliability(30) = 34.8; banlist exposure modifier -8 gives 26.8; capped to 25 because the deck is Illegal (Meta provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ — · 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

• Heavy negation and removal package across traps and spells
• Pot-based card advantage and a searcher line
• 15 Fusion Monsters with recursion and removal text

Weaknesses

• Illegal as built: Forbidden cards and copy-limit overages
• Only 10 monsters in 55 main-deck cards, which raises brick risk
• No archetype core and no recorded boards to confirm any combo
• No side deck

Critical choke points

• Reaching Fusion Monsters depends on Polymerization-style access, and that card is over its copy limit
• Forbidden Fossil Dyna Pachycephalo is central to the deck's identity

Recommended changes

Evidence & confidence

• Verified: Main deck is 55 cards and Extra Deck is 15, both within size rules; Six copy-limit violations and six Forbidden or restricted cards are present; Searcher-style text appears in 7 copies
• Inferred: Opening-hand consistency estimate of about 0.51 for the searcher group; Brick and engine reliability assessments from the card mix; Structural and going-first and going-second estimates
• Provisional: Meta power and matchup fit, pending a dated metagame sample
• Data gaps: No combos supplied, so combo floor, median, and ceiling are text-only inference No tournament link, so archetype meta-share and pilot results are absent No win-rate telemetry exists No side deck is registered Meta Power is provisional until a dated metagame sample is supplied