Mythical Beast Deck #775002 — Yu-Gi-Oh! OCG
56 Main, 15 Extra, incl. Endymion, the Mighty Master of Magic x3, Magister of Endymion x3, Mythical Beast Master Cerberus x3. Created Oct 28, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/28/2026
Main Deck (56)
- Astrograph Sorcerer x1
- Endymion, the Mighty Master of Magic x3
- Magister of Endymion x3
- Majesty Pegasus, the Dracoslayer x1
- Mythical Beast Garuda x1
- Mythical Beast Jackal x2
- Mythical Beast Jackal King x2
- Mythical Beast Master Cerberus x3
- Reflection of Endymion x2
- Servant of Endymion x3
- Allure of Darkness x1
- Chicken Game x3
- Cosmic Cyclone x2
- Dark Ruler No More x2
- Harpie's Feather Duster x1
- Hey, Trunade! x2
- Magia Magic - Thunder of Judgment x1
- Magical Citadel of Endymion x1
- Materialization x1
- Mythical Institution x3
- Necrovalley x1
- Pot of Desires x3
- Secret Village of the Spellcasters x1
- Set Rotation x1
- Soul Release x2
- Spell Power Attainment x3
- Spell Power Mastery x3
- Terraforming x1
- Triple Tactics Talent x1
- Ultimate Slayer x2
Extra Deck (15)
- Odd-Eyes Vortex Dragon x1
- Accesscode Talker x1
- Amphibious Swarmship Amblowhale x1
- Beyond the Pendulum x1
- Dharc the Dark Charmer, Gloomy x1
- Exceed the Pendulum x1
- Heavymetalfoes Electrumite x1
- Hiita the Fire Charmer, Ablaze x1
- I:P Masquerena x1
- Promethean Princess, Bestower of Flames x1
- S:P Little Knight x1
- Salamangreat Almiraj x1
- Selene, Queen of the Master Magicians x1
- Mereologic Aggregator x1
- Odd-Eyes Absolute Dragon x1
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 25/100 (±10 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 55 |
| Going First | 58 |
| Going Second | 50 |
| Meta Power | provisional |
| Tournament Reliability | 45 |
- Primary strategy: Midrange
- Secondary strategies: Toolbox
- Format: ocg
Legality
Main 56 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).
Identity & game plan
- Win condition: Spell Counter Pendulum engine (Endymion / Mythical Beast Pendulum monsters) building boards and Link/Xyz finishers from the Extra Deck; Link-monster and Xyz pressure from the 12 Link and 2 Xyz Extra Deck monsters once the field is established
- Turn 1 (going first): Open Spell Power Attainment or Spell Power Mastery with the Endymion/Servant/Magister Pendulum core, place Spell Counters, and extend into Link or Xyz boards
- Turn 2 (going second): Use Harpie's Feather Duster, Cosmic Cyclone, Dark Ruler No More and Soul Release to strip the opponent's backrow and negate board effects, then rebuild Pendulum pressure
- Recovery: Recover through Spell searchers (20 searcher-text cards) and Spell Counter placement; Mythical Institution and Magical Citadel of Endymion re-add counters and search
- After siding: Not evaluable: the deck runs 0 side cards, so no post-side plan exists in the evidence
Why it scores here
The deck is Illegal as submitted: Triple Tactics Talent is Forbidden and Chicken Game is run 3 copies against a Limited cap of 1, so the score is a theoretical, structural-only cap and not a normal contextual rating. Structurally, the Spell Power and Endymion engine is reasonably accessible: the archetype core group shows about a 97% chance of at least one core card in a 5-card opening hand (Inferred), and about 90% for a searcher. Interaction density is high from removal and negation text (Harpie's Feather Duster, Cosmic Cyclone, Dark Ruler No More, Soul Release), which supports going-second board breaking. The score is held down by low exact-archetype purity (about 11%, with the list spread across Endymion, Mythical Beast, Greed and generic cards), the absence of recorded combos (no measured floor, median or ceiling), the lack of a side deck, and no tournament or matchup data. Popularity and archetype share were not credited, and card scores were not averaged into the deck score.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 70 | At least one core card in a 5-card opening hand is about 97% and a searcher about 90% (Inferred from hypergeometric estimates) |
| D2 | Opening-Hand Quality & Brick Management | 60 | 35 Spells and 21 Pendulum monsters with 0 hand traps, so some hands are likely redundant or conflicting (Inferred) |
| D3 | Combo Conversion & Ceiling | 55 | No recorded boards exist; ceiling is a text-only read of Spell Counter and Endymion engine cards (Inferred) |
| D4 | Combo Floor & Median Output | 45 | No combo sample exists, so median output is an estimate from text alone (Inferred) |
| D5 | Interruption Resilience & Route Redundancy | 55 | Multiple Spell searchers and recursion from Mythical Institution offer some redundancy, but the Pendulum Zone line is fragile (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 65 | 20 searcher-text cards and Spell Counter reuse support rebuilding and grind (Inferred) |
| D7 | End-Board & Interaction Quality | 65 | 30 removal-text and 11 negation-text cards give broad interaction with limited hand-trap coverage (Inferred semantic read) |
| D8 | Going-Second & Board-Breaking Power | 55 | Harpie's Feather Duster, Cosmic Cyclone, Dark Ruler No More and Chicken Game target backrow and monsters, but Chicken Game is over the copy limit (Inferred) |
| D9 | Offensive Pressure & Closing Power | 60 | Endymion and Mythical Beast Master Cerberus reach 2800 ATK and Link/Xyz finishers exist, but the closing line is unmeasured (Verified stat, Inferred use) |
| D10 | Main Deck Efficiency & Flexibility | 45 | 56 Main cards with 30 distinct names and 11% exact archetype purity give low coherence (Verified composition) |
| D11 | Extra Deck Efficiency & Coverage | 55 | 15 of 15 Extra slots filled, 12 Link, 2 Xyz, 1 Fusion, with no recorded use data (Verified composition) |
| D12 | Side Deck Adaptability | 10 | Zero side deck cards, so there is no post-side adaptability (Verified) |
| D13 | Matchup Coverage & Format Fit | 40 | No tournament link, meta share or match record, so matchup fit is Provisional |
| D14 | Pilotability & Error Tolerance | 35 | Multi-zone Pendulum and Spell Counter sequencing has several decision points and no recorded boards to confirm the sequence (Inferred) |
How the score was computed
Strategy profile: Midrange primary, Toolbox secondary (disclosed; Midrange weights used for the structural score). Structural ≈ 55, Going First ≈ 58, Going Second ≈ 50, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist exposure (-12). Final formula: Illegal deck: computed 0.80*Structural(55) + 0.20*TournamentReliability(45) + banlist modifier (-12) = 41, capped to 25 as theoretical/structural-only per the Illegal rule. Meta Power is null (Provisional).
Probability & combo summary
- Opening a starter: P(≥1) ≈ 0.97 · key two-card combo ≈ — · full-brick estimate ≈ 0.03 (all Inferred)
- Combo output: best PowerIndex —, median —, board-per-starter —
- Turn order: 0 going-first lines vs 0 going-second lines
Strengths
- Core engine is reachable in most opening hands (Inferred)
- Heavy removal and negation text covers boards and backrow
- Searcher density supports recovery
Weaknesses
- Illegal list: Forbidden card and copy-limit breach
- Low exact-archetype purity (11%) and a spread-out engine
- No side deck
- No recorded combos or matchup data
Critical choke points
- Pendulum Zone sequencing for Spell Counters
- Chicken Game and Triple Tactics Talent legality
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | Triple Tactics Talent (Forbidden) and 2 of the 3 Chicken Game copies | Legal Spell or Pendulum replacements that keep the Spell Counter engine | Restores legality so the deck can receive a normal contextual score |
| 2 | Off-archetype tech cards with low engine synergy | Additional exact-archetype Mythical Beast or Endymion cards | Raises archetype purity and engine coherence |
Evidence & confidence
- Verified: Illegal status: Triple Tactics Talent Forbidden, Chicken Game 3 copies vs limit 1; Main 56, Extra 15, Side 0; 11.3% exact archetype purity; Usage core present 12/22
- Inferred: Opening-hand engine access about 97% (core) and 90% (searcher); Interaction density and going-second board-breaking reads from card text; Brick and consistency estimates
- Provisional: Meta and matchup fit (no tournament or dated meta sample)
- Data gaps: No combos supplied; combo floor, median and ceiling are text-only inference No tournament link; archetype meta share and per-pilot match record absent No win-rate telemetry; going-first, going-second and matchup rates unknown Meta Power is Provisional without a dated metagame sample Deck title is null; no side deck present
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