Fossil Deck #405479 — Yu-Gi-Oh! OCG
53 Main, 17 Extra, incl. Fossil Dyna Pachycephalo x3, Weathering Soldier x3, Adamancipator Analyzer x3.
Created by: YGO Mod (20517634)
Created On: 01/10/2025
Main Deck (53)
- Adamancipator Crystal - Dragite x2
- Doki Doki x2
- Flint Cragger x1
- Fossil Dyna Pachycephalo x3
- Gaia Plate the Earth Giant x1
- Koa'ki Meiru Guardian x1
- Nibiru, the Primal Being x1
- Rock Band Xenoguitar x1
- Shell Knight x1
- Weathering Soldier x3
- Adamancipator Analyzer x3
- Adamancipator Researcher x3
- Adamancipator Seeker x3
- Ash Blossom & Joyous Spring x3
- Effect Veiler x3
- Adamancipator Friends x3
- Adamancipator Signs x1
- Fossil Fusion x3
- Miracle Rupture x3
- Pot of Desires x1
- Pot of Prosperity x1
- Specimen Inspection x1
- Super Polymerization x3
- Time Stream x2
- Evenly Matched x3
- Rivalry of Warlords x1
Extra Deck (17)
- Fossil Dragon Skullgar x1
- Fossil Dragon Skullgios x1
- Fossil Machine Skull Buggy x1
- Fossil Machine Skull Convoy x1
- Fossil Machine Skull Wagon x1
- Fossil Warrior Skull Bone x1
- Fossil Warrior Skull King x1
- Fossil Warrior Skull Knight x1
- Garura, Wings of Resonant Life x1
- Mudragon of the Swamp x1
- Adamancipator Risen - Dragite x1
- Adamancipator Risen - Leonite x1
- Adamancipator Risen - Raptite x1
- Crystal Wing Synchro Dragon x1
- Naturia Beast x1
- PSY-Framelord Omega x1
- Gallant Granite x1
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22± 6/ 100
Power Score
Structural
44
Reliability
30
Going First
36
Going Second
42
Deck — Deck Power Evaluation
Final Contextual Deck Power: 22/100 (±6 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 44 |
| Going First | 36 |
| Going Second | 42 |
| Meta Power | provisional |
| Tournament Reliability | 30 |
- Primary strategy: Combo
- Secondary strategies: Toolbox
- Format: ocg
Legality
Main 53 / Extra 17 / Side 0 — status under the rules at evaluation time: Illegal. 11 violation(s).
Identity & game plan
- Win condition: Fossil Fusion-enabled Fusion Summons of Fossil Dragon Skullgios and Fossil Warrior Skull King, converting Rock monsters from the Graveyard into large attackers; Adamancipator Synchro pressure (Risen - Dragite, Risen - Leonite) built from excavation
- Turn 1 (going first): Search Fossil Fusion or Weathering Soldier, then use the Fusion Summon route through Fossil Fusion; the list is largely theoretical at this point because three Forbidden cards and an oversized Extra Deck stand in the way
- Turn 2 (going second): Hold Ash Blossom, Effect Veiler, Evenly Matched or Nibiru as hand traps, then Fusion Summon through the Graveyard once the opponent commits a board
- Recovery: Recursion from the Graveyard through Fossil Warrior Skull Bone, Flint Cragger and Gallant Granite, plus draws from Pot of Desires and Garura
- After siding: Not applicable: the deck has no Side Deck, so there is no recorded post-side plan
Why it scores here
The deck's structure is a real Fossil plan: Fossil Fusion and Weathering Soldier look for Fusion Summons into large Rock attackers, and the hand traps give it something to do on the opponent's turn. Its problem is legality, not card quality: three Forbidden cards, two Semi-Limited copy overruns, and seventeen Extra Deck cards against a limit of fifteen mean it cannot be played as listed. The main deck is also diluted, with 49 of 53 copies outside the Fossil name and many generic or Adamancipator cards that only partly fit the engine, which lowers consistency and raises brick risk. No recorded boards exist, so the ceiling and median are text-based inferences and carry low confidence. Popularity did not earn points, and no card scores were averaged into the deck score. The illegal status caps the final score at 22 regardless of the structural read.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 52 | P(at least one Fossil Fusion in a 5-card opening) is about 0.26 for three copies, and the searcher group reaches about 0.74 (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 38 | Roughly 10 hand traps, 19 tech cards and many off-archetype copies give a high chance of dead or conflicting hands (Inferred) |
| D3 | Combo Conversion & Ceiling | 48 | Fusion Summon routes through Fossil Fusion produce strong text-level ceilings, but no recorded boards confirm them (Inferred) |
| D4 | Combo Floor & Median Output | 32 | No recorded boards exist, so median output cannot be measured and is estimated low (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 50 | Searchers and hand traps give some redundancy, but the engine depends on one spell and the Forbidden cards cannot be run (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 52 | Recursion from the Graveyard, Time Stream and draw effects give reasonable grind, though Pot of Prosperity and Rivalry of Warlords are Limited (Inferred) |
| D7 | End-Board & Interaction Quality | 55 | Ash Blossom, Effect Veiler, Evenly Matched and Nibiru provide layered negation and hand-trap coverage, but three Ash Blossom copies exceed the Semi-Limited cap (Verified) |
| D8 | Going-Second & Board-Breaking Power | 48 | Going-second hand traps and Fusion Summons can challenge a board, but no combo or matchup data exists (Inferred) |
| D9 | Offensive Pressure & Closing Power | 60 | Fossil Dragon Skullgios (3500 ATK) and Gaia Plate give high closing power when the engine runs (Verified) |
| D10 | Main Deck Efficiency & Flexibility | 15 | The Main Deck has 26 distinct cards with only 21 Fossil-name copies, and the deck is 53 cards against a 40-60 range that is legal but unfocused, so efficiency is low (Verified) |
| D11 | Extra Deck Efficiency & Coverage | 30 | The Extra Deck has 17 cards against a limit of 15, and three of them are Forbidden, so the slot use is over the limit and partly illegal (Verified) |
| D12 | Side Deck Adaptability | 10 | The deck has no Side Deck, so there is no post-side adaptability to score (Verified) |
| D13 | Matchup Coverage & Format Fit | 40 | No tournament link exists, so matchup fit is Provisional and needs a dated meta sample (Provisional) |
| D14 | Pilotability & Error Tolerance | 40 | The engine requires several Fusion steps and hand-trap timing decisions, which raises the error rate for a typical pilot (Inferred) |
How the score was computed
Strategy profile: Combo primary, Toolbox weight disclosed as context only. Structural ≈ 44, Going First ≈ 36, Going Second ≈ 42, Meta = provisional, Tournament Reliability ≈ 30. Modifiers: banlist exposure (-8); engine conflicts (-4). Final formula: Illegal cap: min(0.80*Structural + 0.20*TournamentReliability + ContextModifiers, 22); structural-only reading (0.80*44 + 0.20*30 = 41.2 before cap); Meta provisional
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.26 · 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
- Fusion Summon engine with high-ATK payoffs (Fossil Dragon Skullgios at 3500 ATK)
- Multiple hand traps (Ash Blossom, Effect Veiler, Evenly Matched, Nibiru) for going second
- Graveyard recursion and draw effects give some resource recovery
Weaknesses
- Not legal as listed: three Forbidden cards, Semi-Limited overruns and a 17-card Extra Deck
- Low archetype purity, so many hands contain dead or off-engine cards
- No Side Deck, so no post-side adaptation
Critical choke points
- Fossil Fusion (three copies) is the single gate to most Fusion Summons
- Forbidden-card removal is required before the list can be played at all
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Fossil Dyna Pachycephalo (3), Naturia Beast (1), Crystal Wing Synchro Dragon (1), PSY-Framelord Omega (1) | Legal Fossil-name or Rock-compatible replacements from the OCG list | These cards are Forbidden in OCG and cannot be run; removing them is required before any strength read is valid |
| 2 | One Ash Blossom & Joyous Spring and one Super Polymerization | Non-restricted hand traps or searchers from the Fossil or Rock pool | Brings Semi-Limited copies back to the allowed two |
| 3 | Two Extra Deck cards outside the core engine | A Fossil Fusion or Rock Fusion target already in the Extra Deck list | Brings the Extra Deck to the 15-card limit and reduces dead Extra Deck slots |
Evidence & confidence
- Verified: Deck is 53 Main and 17 Extra with 0 Side; Four cards are Forbidden and must be removed; Three Ash Blossom and three Super Polymerization copies exceed Semi-Limited limits; Fossil Dragon Skullgios has 3500 ATK and text that supports Fusion Summons
- Inferred: Fossil Fusion gives about 0.26 chance in a 5-card opening; High brick risk from 49 off-archetype copies; Hand-trap coverage is strong for going second
- Provisional: Meta power and matchup fit need a dated metagame sample
- Data gaps: No recorded boards exist, so the combo ceiling and median are text-only inferences No tournament link, so archetype meta-share and pilot record are absent No win-rate telemetry exists for going-first or going-second results Meta Power is Provisional unless a dated metagame sample is supplied No Side Deck is present, so post-side adaptability cannot be measured
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