Mecha Phantom Beast Deck #767316 — Yu-Gi-Oh! OCG
56 Main, 17 Extra, incl. Black Chaos x3, Cornfield Coatl x3, Gazelle the King of Mythical Claws x3. Created Oct 20, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/20/2026
Main Deck (56)
- Armageddon Knight x1
- Big-Winged Berfomet x1
- Black Chaos x3
- Buio the Dawn's Light x1
- Cornfield Coatl x3
- Diabellze the Original Sinkeeper x1
- Diabolica the Draconique General x1
- Droll & Lock Bird x1
- Evil HERO Adusted Gold x1
- Evil HERO Sinister Necrom x1
- Fiendsmith Engraver x1
- Fleeting Phantom Mask Master x1
- Gazelle the King of Mythical Claws x3
- Griffoh x1
- Kuriboh - Multiply! x1
- Lacrima the Crimson Tears x1
- Master Tao the Chanter x1
- Mirror Swordknight x1
- Mulcharmy Fuwalos x3
- Mulcharmy Purulia x1
- Nightmare Apprentice x3
- Skull Archfiend of Chaos x1
- Black Luster Soldier - Soldier of Light and Darkness x1
- Magician of Dark Chaos - Black Chaos x1
- Ash Blossom & Joyous Spring x3
- Chimera Fusion x3
- Foolish Burial x1
- Forbidden Droplet x3
- Light and Darkness Ritual x1
- Mutiny in the Sky x1
- Nightmare Hands x3
- Ragged Records of Rites x3
- Super Polymerization x3
- Mind Shuffle x1
Extra Deck (17)
- Berfomet the Mythical King of Phantom Beasts x2
- Chimera the Illusion Beast x1
- Chimera the King of Phantom Beasts x1
- Fiendsmith's Desirae x1
- Fiendsmith's Lacrima x1
- Guardian Chimera x1
- Mixousia the Confounder x1
- Necroquip Princess x1
- The Duke of Demise x1
- A Bao A Qu, the Lightless Shadow x1
- Fiendsmith's Agnumday x1
- Fiendsmith's Requiem x1
- Fiendsmith's Sequence x1
- S:P Little Knight x1
- Chaos Angel x1
- Evolzar Lars x1
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25± 8/ 100
Power Score
Structural
51
Reliability
40
Going First
50
Going Second
52
Deck — Deck Power Evaluation
Final Contextual Deck Power: 25/100 (±8 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 51 |
| Going First | 50 |
| Going Second | 52 |
| Meta Power | provisional |
| Tournament Reliability | 40 |
- Primary strategy: Midrange
- Secondary strategies: Toolbox, Fusion, Ritual, Link
- Format: ocg
Legality
Main 56 / Extra 17 / Side 0 — status under the rules at evaluation time: Illegal. 3 violation(s).
Identity & game plan
- Win condition: Large Fusion, Link and Ritual bosses (Chimera the Illusion Beast, Chaos Angel, Black Luster Soldier, Magician of Dark Chaos - Black Chaos) that must be assembled from several different sub-engines (Inferred); Chimera Fusion and Berfomet recursion into Fusion bosses, supported by Mulcharmy card advantage (Inferred)
- Turn 1 (going first): Search-chain starter (Gazelle, Nightmare Apprentice, Chimera Fusion or Mind Shuffle) into a Fusion or Ritual boss, using hand traps only if the opponent is on a board (Inferred)
- Turn 2 (going second): Hand traps (Ash Blossom, Droll & Lock Bird, Kuriboh, Buio) to break the opponent's starter, then a Fusion or Ritual boss from the remaining hand (Inferred)
- Recovery: GY-based recursion through Fiendsmith's Lacrima, Diabolica and Cornfield Coatl, and Mulcharmy card draw; depends on the GY containing the right Fiend or Illusion monsters (Inferred)
- After siding: No side deck is registered, so no post-side plan exists in this list
Why it scores here
The list reliably reaches a searcher-dense starter: 12 archetype-core copies give about a 72% chance of at least one in a 5-card opening hand, and 26 searcher-text cards give about 96% (Inferred from hypergeometric estimates). Interaction density is good, with four hand traps plus Ash, Droll, Forbidden Droplet, Mind Shuffle and the Black Chaos negation text, so the deck can contest an early turn. Its ceiling comes from several 3000+ ATK bosses, but these depend on three different sub-engines (Chimera, Fiendsmith and Light and Darkness Ritual), so the deck often stalls for want of the right second piece (Inferred). The score is not earned from Mecha Phantom Beast popularity, which is not reflected in this list (exact-name purity is 0%), and the deck score is not an average of card scores. The Illegal status (three copies of two Semi-Limited cards and a 17-card Extra Deck) caps the final score, so this result is structural only.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 58 | P(>=1 archetype-core card in opening 5) ≈ 0.72; P(>=1 searcher-text card) ≈ 0.96; three engines split the core (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 42 | Four hand traps and 11 tech cards plus three competing engines produce a high brick and conflicting-hand rate (Inferred) |
| D3 | Combo Conversion & Ceiling | 55 | No parseable combo boards; ceiling is inferred from boss power (3000+ ATK) and fusion and ritual access in the card text (Inferred) |
| D4 | Combo Floor & Median Output | 40 | No recorded boards, so the median output is unknown and is set low for lack of evidence (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 60 | Four hand traps, Ash, Droll, Kuriboh and Buio give several independent interruption routes (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 58 | Searchers and Mulcharmy draw recover resources, but GY costs are heavy and the Fiend and Illusion requirements are fragile (Inferred) |
| D7 | End-Board & Interaction Quality | 64 | Interaction count is high (Ash, Droll, Droplet, Mind Shuffle, Buio, Black Chaos, Chimera text negations) with mixed durability (Verified text, Inferred quality) |
| D8 | Going-Second & Board-Breaking Power | 58 | Several 3000 ATK boss-level monsters and non-engine negation give moderate board-breaking power (Inferred) |
| D9 | Offensive Pressure & Closing Power | 66 | Boss ATK values reach 3300 to 3500 (Verified card data), but closing depends on resolving an engine first (Inferred) |
| D10 | Main Deck Efficiency & Flexibility | 38 | 56 Main Deck cards with 23 singletons and no archetype purity (0% exact name) across Fiendsmith, Chimera and Ritual sub-groups (Verified composition, Inferred cost) |
| D11 | Extra Deck Efficiency & Coverage | 40 | Extra Deck holds 17 cards, two above the OCG limit, across 16 distinct cards with no uniform theme (Verified count, Inferred flexibility) |
| D12 | Side Deck Adaptability | 15 | No Side Deck is registered, so no post-side plan can be scored (Verified; Provisional) |
| D13 | Matchup Coverage & Format Fit | 40 | No dated OCG meta or tournament link; archetype share unavailable, so the score is provisional (Provisional) |
| D14 | Pilotability & Error Tolerance | 30 | Multi-engine sequencing, many decision points and a 17-card Extra Deck make pilotage hard (Inferred) |
How the score was computed
Strategy profile: Midrange. Structural ≈ 51, Going First ≈ 50, Going Second ≈ 52, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: banlist exposure (-3); engine conflicts (-4). Final formula: Uncapped: 0.80*51 + 0.20*40 + modifiers(-7) ≈ 42; capped to 25 because the list is Illegal (theoretical/structural-only). Meta Power is provisional.
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.72 · 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 searcher access for the core engine (Inferred)
- Four hand traps and several negation effects for early interaction (Verified text)
- Several 3000+ ATK bosses (Verified stats)
Weaknesses
- Illegal list: two Semi-Limited cards over the limit and a 17-card Extra Deck (Verified)
- Three competing sub-engines dilute consistency (Inferred)
- No side deck (Verified)
Critical choke points
- Ash Blossom, Droll and Kuriboh as the only answers to the opponent's starter (Inferred)
- Single Fusion Summon for Chimera Fusion, Berfomet and Cornfield Coatl routes (Inferred)
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | 1 Ash Blossom & Joyous Spring and 1 Super Polymerization | 1 non-restricted card of the same role | Restores legality; the list is Illegal and cannot score normally until fixed (Verified) |
| 2 | 1 Extra Deck card of the weakest engine (e.g., The Duke of Demise or Necroquip Princess) | none | Brings the Extra Deck to 15 or fewer (Verified) |
| 3 | 1 off-plan sub-engine card | Cards that reinforce a single engine (e.g., more Chimera or more Fiendsmith) | Reduces engine conflicts and the brick rate (Inferred) |
Evidence & confidence
- Verified: Illegal status: 17 Extra cards (limit 15), Ash Blossom and Super Polymerization each at 3 copies (limit 2); Limited status for Foolish Burial, Droll & Lock Bird, Fiendsmith Engraver, Fiendsmith's Lacrima and S:P Little Knight; Card stats and text as in evidence
- Inferred: Starter access probabilities (hypergeometric); Three-engine conflict and brick estimate; Boss win conditions and going-first and going-second plans
- Provisional: Meta Power; Matchup and format fit; Tournament reliability
- Data gaps: No combos supplied: floor, median and ceiling are text-only inference No tournament link: archetype meta share and per-pilot record absent No win-rate telemetry for going-first, going-second, matchup or brick rates No side deck registered Meta Power provisional without a dated metagame sample
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