Thunder Dragon Deck #768361 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 35/100 (±8 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Toolbox, Fusion/Synchro/Xyz/Link
• Format: ocg

Legality

Main 48 / Extra 19 / Side 0 — status: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Thunder Dragon Titan / Thunder Dragon Colossus fusion pressure enabled by the Thunder Dragon searcher engine; Synchro and Xyz boards (Chaos Angel, Bystial Dis Pater, Number 38, Mercurium) plus Underworld Goddess link backup
• Turn 1 (going first): Search a Thunder Dragon engine monster, use Thunder Dragon Fusion or Thunder Dragondark/Matrix searches to reach Fusion, then extend with Batteryman Solar and Thunder Dragonhawk (Inferred, theoretical only)
• Turn 2 (going second): Hold Ash Blossom, Infinite Impermanence, Droll and Lock Bird, Evenly Matched or Nibiru as hand traps, then pivot into a Thunder fusion (Inferred, theoretical only)
• Recovery: Thunder Dragon monsters and Roar/Hawk recover from GY or banish zones via their own search and summon effects (Verified text, Inferred usability)
• After siding: None: side_count is 0, so no post-side plan exists (Verified)

Why it scores here

The deck is scored as a system, not as an average of its cards. Its searcher web (19 search-text cards, P(at least one in a 5-card hand) about 0.93) makes the Thunder Dragon engine likely to open, but each individual 2-copy starter is only about 0.20 to open in hand, so the engine depends on search chains rather than a single reliable starter. Interaction is broad (5 hand traps, 18 removal-text cards, 3 negation-text cards), and its Extra Deck offers high closing power (Titan 3200, Chaos Angel 3500, Dis Pater 3500). Those strengths are offset by an illegal list (Allure of Darkness over copy limit, 19 Extra Deck cards against a max of 15), mixed sub-archetypes (Bystial, Chaos, Horus, Batteryman, Synchron splashes, exact-name purity 29.9%), no side deck, and no combo or matchup data. Archetype popularity and usage statistics did not earn points: the usage core cards are all absent from this list, so they say nothing about this build. Because the list is Illegal, the final score is capped at 35 and this is a theoretical, structural-only evaluation.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 53, Going First ≈ 50, Going Second ≈ 47, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist_exposure (-4); engine_conflicts (-3); no_side_deck (-2); illegal_legality_cap (0). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) = 51.4; context modifiers -9 gives 42.4; Illegal legality cap sets final to 35 (theoretical/structural-only)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.2 · 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

• Searcher density: 19 search-text cards, P(>=1 in opening hand) about 0.93
• Layered interaction: 5 hand traps, 18 removal-text cards, 3 negation-text cards
• High-end Extra Deck closers: Thunder Dragon Titan, Thunder Dragon Colossus, Chaos Angel, Bystial Dis Pater

Weaknesses

• Illegal list: Allure of Darkness at 2 copies against a limit of 1
• Extra Deck has 19 cards against a maximum of 15
• Mixed sub-archetypes reduce engine coherence (exact-name purity 29.9%)
• No side deck, so no post-side plan
• Dependence on 2-copy starters with about 0.20 opening-hand odds

Critical choke points

• Thunder Dragon Fusion and the Thunder fusion monsters depend on Thunder Dragon searches being live
• Allure of Darkness copy limit must be fixed before any legal evaluation applies

Recommended changes

Evidence & confidence

• Verified: Illegal status: Allure of Darkness 2 copies vs limit 1, Extra Deck 19 vs max 15; Main Deck 48 within the 40-60 range; side deck 0; Card text and stats for all listed cards; Banlist status of Limited/Semi-Limited cards in the list
• Inferred: Opening-hand probabilities (hypergeometric); Engine accessibility, brick risk and interaction quality from card text; Pilotability and resilience estimates
• Provisional: Meta Power and format fit (no dated metagame sample); Matchup coverage
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot record absent No win-rate telemetry exists in YGOVN for this deck usage_statistics lists Invoked/Aleister core cards, none present (0 of 7), so usage stats do not describe this build Meta Power is Provisional unless a dated metagame sample is supplied