Megalith Deck #767795 — Yu-Gi-Oh! OCG
55 Main, 15 Extra, incl. Drytron Alpha Thuban x3, Mulcharmy Fuwalos x3, Mulcharmy Purulia x3. Created Oct 20, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/20/2026
Main Deck (55)
- Droll & Lock Bird x1
- Drytron Alpha Thuban x3
- Drytron Gamma Eltanin x2
- Drytron Nu II x1
- Drytron Zeta Aldhibah x1
- Maxx "C" x1
- Mulcharmy Fuwalos x3
- Mulcharmy Purulia x3
- Nibiru, the Primal Being x1
- Ultimate Bright Knight Ursatron Alpha x1
- Vanity's Ruler x1
- Cyber Angel Benten x3
- Drytron Meteonis Draconids x1
- Megalith Aratron x1
- Megalith Bethor x1
- Megalith Notrah Plura x1
- Megalith Phul x1
- Megalith Phuloch x1
- Sakitama x1
- Ash Blossom & Joyous Spring x2
- Diviner of the Herald x1
- Effect Veiler x3
- Ghost Belle & Haunted Mansion x1
- Cyber Emergency x3
- Drytron Fafnir x1
- Drytron Nova x3
- Forbidden Droplet x3
- Megalith Anastasis x3
- Meteonis Drytron x1
- Dimensional Barrier x1
- Red Reboot x1
- Solemn Judgment x1
- Solemn Strike x3
Extra Deck (15)
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 20/100 (±5 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 52 |
| Going First | 52 |
| Going Second | 50 |
| Meta Power | provisional |
| Tournament Reliability | 45 |
- Primary strategy: Midrange
- Secondary strategies: Toolbox, Control
- Format: ocg
Legality
Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 5 violation(s).
Identity & game plan
- Win condition: Megalith Ritual Summon of large beaters (Notrah Plura 3700 ATK, Drytron Meteonis Draconids 4000 ATK) backed by Extra Deck link and synchro bosses; Drytron Fafnir / Mu Beta Fafnir board pressure and Ritual recursion from the GY
- Turn 1 (going first): Search a Megalith card with Megalith Anastasis or Ritual-chain starters, then Ritual Summon a Megalith monster while keeping Droll and Ash Blossom up as interaction
- Turn 2 (going second): Hold Ash Blossom, Ghost Belle, Effect Veiler, Maxx C, Nibiru and Droll to stop the opponent's first summon or activation, then convert through a Ritual Summon
- Recovery: Recover Ritual monsters and Megalith cards from the GY through Megalith Phuloch, Phul and Anastasis effects
- After siding: Not evaluable: the deck has no side deck, so no post-side plan exists in this list
Why it scores here
The score is computed on the deck as a system, not from the averaged card scores or from Megalith's popularity. Structurally the list reaches a searcher or Ritual starter in opening hands about 91% of the time (20 searcher-text cards, hypergeometric, Inferred), and the Megalith core is present in about 78% of 5-card openings, so the engine is reasonably accessible. Interaction is dense: 21 negation-text cards, 10 hand traps and 13 removal-text cards give strong end-board protection and going-second answers. The list is heavily mixed: only 11% of cards carry the exact Megalith name, with 62 off-archetype copies across Drytron, Mulcharmy, Cyber Angel and other sub-archetypes, which lowers efficiency and raises brick and conflict risk. There are no recorded combos, no tournament link and no side deck, so the floor and median are text-only inferences and the Meta and Post-side scores are absent. The list is Illegal: five Forbidden cards are run in the Extra Deck, so the normal contextual score is capped at 20 and the figures are structural only.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 62 | P(at least 1 searcher in 5-card opening) ≈ 0.91; Megalith core in opening ≈ 0.78; 2-card bootstrap not verified (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 50 | 10 hand traps plus 17 tech cards, several dead outside their combo, and 3 copies each of several conditional Ritual cards (Inferred) |
| D3 | Combo Conversion & Ceiling | 55 | Ritual chains reach 3700 to 4000 ATK bosses, but no recorded boards exist, so the ceiling is text-only (Inferred) |
| D4 | Combo Floor & Median Output | 40 | No combo boards supplied; median output cannot be measured and is estimated from consistency only (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 55 | Multiple hand traps, Drytron and Megalith recursion, and some redundant starters give partial recovery after one disruption (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 55 | Megalith Anastasis and Phuloch recycle Ritual monsters from the GY, but the Ritual cost is high in tributes (Inferred) |
| D7 | End-Board & Interaction Quality | 70 | 21 negation-text cards, 10 hand traps and removal-text cards give layered interaction, with Dimensional Barrier and Solemn Judgment capping the Limited tier (Inferred semantic) |
| D8 | Going-Second & Board-Breaking Power | 55 | Ash Blossom, Ghost Belle, Droll and Nibiru give going-second answers, but board-breaking removal is thin (Inferred) |
| D9 | Offensive Pressure & Closing Power | 60 | Notrah Plura at 3700 ATK, Draconids at 4000 ATK and Firewall Singularity at 3500 ATK give high closing power, but the Extra Deck is partly illegal (Verified stat, Inferred) |
| D10 | Main Deck Efficiency & Flexibility | 40 | Main deck has 33 distinct cards, 11.4% exact-name purity, and 17 tech slots, so it is not compact (Verified composition, Inferred) |
| D11 | Extra Deck Efficiency & Coverage | 40 | 14 distinct Extra Deck cards with 5 Forbidden, so Extra coverage is partly unusable under the legal list (Verified legality) |
| D12 | Side Deck Adaptability | 10 | The deck has zero side deck cards, so there is no adaptability and a best-of-3 plan is not possible (Verified composition) |
| D13 | Matchup Coverage & Format Fit | 45 | No tournament or meta sample supplied; archetype share is absent, so format fit stays Provisional (Provisional) |
| D14 | Pilotability & Error Tolerance | 55 | Ritual, Drytron and Link interplay with several conditional summon rules is demanding for the pilot (Inferred) |
How the score was computed
Strategy profile: Midrange. Structural ≈ 52, Going First ≈ 52, Going Second ≈ 50, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist_exposure (-8). Final formula: Uncapped: 0.80*52 + 0.20*45 - 8 (banlist modifier) ≈ 43; Illegal status caps the final at 20. Meta provisional, not used.
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.91 · key two-card combo ≈ — · full-brick estimate ≈ 0.22 (all Inferred)
- Combo output: best PowerIndex —, median —, board-per-starter —
- Turn order: 0 going-first lines vs 0 going-second lines
Strengths
- Searcher density: 20 searcher-text cards, P(at least one in opening 5) ≈ 0.91
- Layered interaction: 21 negation-text cards, 10 hand traps, 13 removal-text cards
- High-ATK Ritual bosses reachable through Megalith Ritual chains
Weaknesses
- Illegal list: five Forbidden cards in the Extra Deck
- Low exact-archetype purity (11.4%) and 17 tech slots dilute the engine
- No side deck, so no best-of-3 adaptability
Critical choke points
- Megalith Ritual Summon requires specific Ritual monsters and tributes, so one missing Megalith or tribute piece stalls the line
- Extra Deck legality: the Forbidden link and synchro monsters cannot be legally played
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Link Decoder, F.A. Dawn Dragster, Reprodocus, Protectcode Talker, Knightmare Gryphon | Legal Extra Deck link or synchro monsters within the copy limit | Clears the illegal status so the deck can receive a normal contextual score |
| 2 | Off-archetype tech cards (for example Forbidden Droplet, Cyber Emergency, Effect Veiler) in excess | More Megalith-named starters or searchers | Raises exact-archetype purity and reduces brick risk |
| 3 | None | A side deck of 5 to 15 cards | Gives best-of-3 post-side options (D12 currently 10) |
Evidence & confidence
- Verified: Main 55 and Extra 15 are within size rules; Five Forbidden copies over the copy limit; Ash Blossom at 2 copies is within the Semi-Limited limit; Exact-name purity 11.4%; 0 side deck cards
- Inferred: Searcher access ≈ 0.91 in opening 5 (hypergeometric); Megalith core in opening ≈ 0.78 (hypergeometric); Interaction density and resilience from card text; Going-first and going-second scores from text and probability
- Provisional: Meta Power and matchup fit: no dated metagame sample or tournament link
- Data gaps: no combos supplied: combo floor, median and ceiling are text-only inference no tournament link: archetype meta-share and pilot match record absent no win-rate telemetry exists in YGOVN Meta Power is Provisional without a dated metagame sample Side deck is empty, so post-side scoring is absent
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