Mythical Beast Deck #730367 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 34/100 (±8 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Toolbox, Mechanic: Pendulum / Link / Synchro
• Format: ocg

Legality

Main 49 / Extra 21 / Side 0 — status under the rules at evaluation time: Illegal. 5 violation(s).

Identity & game plan

• Win condition: Pendulum/Spell-Counter engine (Endymion, Magister, Servant, Reflection) escalating into Extra Deck boss monsters (Red Supernova Dragon, Junora, Centur-Ion Auxila/Legatia) and Link beatsticks; Mythical Beast Pendulum boards with Centur-Ion and Knightmare link pressure
• Turn 1 (going first): Search with Spell Power Mastery / Mythical Institution / Astrograph Sorcerer and build Spell Counters through Endymion; Pendulum Scale into Extra Deck summons. Plan is theoretical: the list is illegal as built.
• Turn 2 (going second): Hand-trap support is thin (Nibiru only, plus Set Rotation / Swords of Concealing Light as one-off disruption). Going second relies on Extra Deck boss summons rather than interaction; no recorded data.
• Recovery: Searchers (18 searcher-text cards) and Mythical Beast Jackal King / Garuda recursion from the other Pendulum Zone. Recovery value is structurally plausible but unmeasured.
• After siding: None. Side deck is empty, so there is no post-side plan. A legal build would need a 15-card side.

Why it scores here

This deck is scored as a system: Midrange with a Spell Counter / Pendulum engine, not as an average of its cards. Consistency is the strongest read: 18 searcher-text cards and an archetype core that is about 89% likely to show at least one piece in a 5-card opening hand (Inferred), so the engine is usually reachable. Conversion and median output cannot be measured because the export has no parseable recorded boards, so D3 and D4 sit around 40 on text reading alone. Interaction is thin (one hand trap, 6 negation-text cards, no floodgates), and the Extra Deck is 21 cards against a limit of 15. The list is Illegal: three copy-limit violations (including two Forbidden cards) and an oversized Extra Deck, so it does not receive a normal Final score. The 34 is a structural-only ceiling, capped by a -12 legality modifier. Popularity and the archetype's usage stats confirm the list is real, but they did not add points.

Dimension scores

How the score was computed

Strategy profile: Midrange primary; Toolbox secondary used for D7/D11 context only. Structural ≈ 46, Going First ≈ 47, Going Second ≈ 44, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: illegal-deck-cap (-12). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) + ContextModifiers(-12); illegal deck capped, structural-only

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.89 · key two-card combo ≈ — · full-brick estimate ≈ 0.11 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• 18 searcher-text cards give high engine accessibility
• Endymion Spell Counter engine has multiple starters and recursion
• Extra Deck contains strong boss monsters (Red Supernova Dragon, Junora, Auxila)

Weaknesses

• Illegal as built: copy-limit and Forbidden-card violations
• Extra Deck is 21 cards against a 15-card limit
• Empty side deck, so no post-side adaptability
• Very low archetype purity (10%) with 63 off-archetype copies
• Only one hand trap and no floodgates

Critical choke points

• Legal copy limits must be fixed before any play-pattern assessment is valid
• Spell Counter engine depends on Endymion, Magister or Servant being live on T1-T2

Recommended changes

Evidence & confidence

• Verified: Illegal status and copy-limit violations (Chicken Game, Magicians' Souls, Supreme King Dragon Starving Venom); Extra Deck count 21 against a limit of 15; Side deck count 0; Searcher-text count 18; archetype core hand5 probability 0.89
• Inferred: Engine accessibility rating (D1 70); Brick estimate (D2 55); Interaction quality (D7 45); Going-first and going-second estimates
• Provisional: Meta Power is null; D13 is provisional with no dated meta sample; Tournament Reliability is provisional with no win-rate data
• Data gaps: no combos supplied: combo floor/median/ceiling is text-only inference no tournament link: archetype meta-share and per-pilot match record absent no win-rate telemetry (going-first/second, matchup, brick and starter rates) Meta Power is provisional without a dated metagame sample