Megalith Deck #759663 — Yu-Gi-Oh! Master Duel
40 Main, 15 Extra, incl. Impcantation Candoll x3, Impcantation Penciplume x3, Impcantation Talismandra x3.
Created by: YGO Mod (20517634)
Created On: 10/02/2026
Main Deck (40)
- Impcantation Bookstone x1
- Impcantation Candoll x3
- Impcantation Penciplume x3
- Impcantation Talismandra x3
- Manju of the Ten Thousand Hands x3
- Senju of the Thousand Hands x3
- Cyberse Sage x1
- Lord of the Red x2
- Megalith Bethor x1
- Megalith Hagith x3
- Megalith Och x1
- Megalith Ophiel x3
- Megalith Phaleg x3
- Impcantation Inception x3
- Impcantation Thanatosis x3
- Megalith Portal x1
- Megalith Unformed x1
- Megalith Emergence x1
- SA.I.dekick x1
Extra Deck (15)
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57± 6/ 100
Power Score
Structural
62
Reliability
52
Going First
65
Going Second
54
Deck — Deck Power Evaluation
Final Contextual Deck Power: 57/100 (±6 · Confidence: Medium)
| Overall score | Value |
|---|---|
| Structural Deck Power | 62 |
| Going First | 65 |
| Going Second | 54 |
| Meta Power | provisional |
| Tournament Reliability | 52 |
- Primary strategy: Combo
- Secondary strategies: Ritual, Link, Xyz
- Format: master-duel
Legality
Main 40 / Extra 15 / Side 0 — status: Legal.
Identity & game plan
- Win condition: Ritual Summon 2300-2500 ATK bosses (Megalith Phaleg, Lord of the Red, Megalith Bethor) off Impcantation and Megalith ritual chains, then Link and Xyz follow-up pressure; Link-3 boards from Protectcode and Powercode Talker, and Code Igniter Xyz pressure
- Turn 1 (going first): Search a ritual enabler with Senju or Manju, Special Summon Candoll or Talismandra from hand by revealing a Ritual Spell, then Ritual Summon a boss through Inception or Unformed
- Turn 2 (going second): Use the six-card hand to reach a Ritual Spell plus a boss; there are no hand traps or floodgates, so the second-player plan depends on the boss landing before the opponent's board develops
- Recovery: Recycle Ritual Monsters from the GY through Megalith Portal, Impcantation Inception (GY effect) and Megalith Emergence, and use Herald of Pure Light to add a GY monster back to hand
- After siding: None: the side deck is empty, so the build has no post-side plan
Why it scores here
The deck's power is scored on its system, not on its card average. Ten three-copy Impcantation and Megalith hand-starters and 27 searcher-text copies give a very high chance of a live starter by turn 1 (Inferred, from hypergeometric odds), which earns the top consistency mark. The ritual chains (Inception plus Ophiel, Phaleg, Hagith and Bethor) convert that starter into 2300-2500 ATK bosses and Link-3 follow-up, but no recorded boards exist, so the ceiling is text-only and the median is held near the middle. Interaction is limited to the Extra Deck negates and Lord of the Red, with no hand traps and an empty side deck, which holds going-second play and post-side adaptability down. Popularity or meta share did not earn points: the archetype core is present in only 5 of 25 standard cards, and the score would not be raised by the Megalith name alone.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 72 | P(at least one searcher-text card in opening 5) ≈ 0.998 across 27 copies; ten three-copy Impcantation and Megalith hand-starter lines (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 62 | Eight singleton slots and only four Ritual Spell copies (Inception 3, Unformed 1) for 14 Ritual Monsters; proxy full-brick ≈ 0.26 (Inferred) |
| D3 | Combo Conversion & Ceiling | 68 | No recorded boards; ceiling reasoned from chained Ritual Summons through Inception, Ophiel and Hagith plus Link-3 follow-up (Inferred, text-only) |
| D4 | Combo Floor & Median Output | 52 | Median unmeasured; output depends on Ritual Spell availability and searcher density, so the floor sits well below the ceiling (Inferred, combo data absent) |
| D5 | Interruption Resilience & Route Redundancy | 60 | Several independent hand starters, Senju and Manju search, and GY recursion give route redundancy, but there are no hand traps against interruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 66 | GY recursion through Megalith Portal, Inception and Emergence, plus Herald and Code Igniter searches, offsets the ritual resource cost (Inferred from text) |
| D7 | End-Board & Interaction Quality | 64 | Seven removal-text cards and several Extra-side negate or ATK-change effects (Lord of the Red, Powercode, Protectcode, Pitknight, Asophiel, SA.I.dekick); no hand-trap layer (Inferred semantic read) |
| D8 | Going-Second & Board-Breaking Power | 46 | Zero hand traps and zero floodgates; board-breaking when going second relies on Lord of the Red and Megalith bosses (Inferred) |
| D9 | Offensive Pressure & Closing Power | 70 | Multiple 2300-2500 ATK bosses: Phaleg 2500, Lord 2400, Code Igniter 2300 x2, Powercode 2300, Protectcode 2300 (Verified stat) |
| D10 | Main Deck Efficiency & Flexibility | 62 | 40 of 40 main with 19 distinct cards and ten three-copy slots; exact Megalith name purity is only 25.5%, though Impcantation and Megalith cohere through ritual searches (Verified structure, Inferred coherence) |
| D11 | Extra Deck Efficiency & Coverage | 66 | Nine Link, five Xyz and one Fusion in the Extra Deck; Link-3 pieces are real choke points, and two-copy Link-2 tools provide access (Verified) |
| D12 | Side Deck Adaptability | 20 | Zero side-deck cards, so there is no adaptability layer at all (Verified) |
| D13 | Matchup Coverage & Format Fit | 50 | No tournament link or dated meta sample; archetype share is absent, so a neutral placeholder is used (Provisional) |
| D14 | Pilotability & Error Tolerance | 45 | Multi-step ritual turns with Extra Link and Xyz follow-ups and several branching choices; error-prone but routine (Inferred from examples and text) |
How the score was computed
Strategy profile: Combo. Structural ≈ 62, Going First ≈ 65, Going Second ≈ 54, Meta = provisional, Tournament Reliability ≈ 52. Modifiers: Ritual Spell choke point (-2); Cyberse Sage enabler absent (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional; 0.80*62 + 0.20*52 - 3 = 56.8, rounded to 57)
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.74 · key two-card combo ≈ — · full-brick estimate ≈ 0.26 (all Inferred)
- Combo output: best PowerIndex —, median —, board-per-starter —
- Turn order: 0 going-first lines vs 0 going-second lines
Strengths
- Very high searcher density (27 copies) and ten three-copy hand-starters give reliable turn-1 access
- Two-copy-plus Ritual Monster base (14) backed by Inception and Unformed
- Extra Deck supplies Link-3 and Xyz follow-up with several 2300+ ATK bosses
Weaknesses
- Zero hand traps and zero floodgates; weak going-second interaction
- Empty side deck gives no post-side plan
- Only four Ritual Spell copies; ritual-spell draws are a choke point
- Cyberse Sage's enabler is absent from the list
Critical choke points
- Ritual Spell in hand (Inception or Unformed) to start Ritual Summon chains
- Link-3 availability (Protectcode, Powercode) for Extra Deck follow-up
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Cyberse Sage | Ash Blossom & Joyous Spring | Adds a hand trap, which the deck lacks entirely; Ash appears at 57% in the archetype usage stats (Observed), and Sage's enabler is not present in the list |
| 2 | Impcantation Bookstone | second copy of Megalith Unformed | Raises Ritual Spell count from four to five to ease the ritual-spell choke point (Inferred) |
Evidence & confidence
- Verified: Legal main 40, extra 15, side 0 under Master Duel size rules; All cards Unlimited; no copy-limit violations; Boss ATK values 2300-2500 from card data; Archetype core present in 5 of 25 standard cards (usage stats)
- Observed: Ash Blossom & Joyous Spring appears in 57% of archetype usage stats
- Inferred: Starter access ≈ 0.998 from searcher-text hypergeometric odds; Brick proxy ≈ 0.26 from the archetype core group; Ceiling and median from card text only, with no recorded boards; Interaction quality from semantic reading of negate and removal text
- Provisional: Meta Power and D13 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 per-pilot match record are absent No win-rate telemetry (going-first/second, matchup, brick/starter rates) Meta Power is provisional unless a dated metagame sample is supplied No guides attached to the archetype
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