Thunder Dragon Deck #770758 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

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

• Primary strategy: Toolbox
• Secondary strategies: Midrange, Blind-Second
• Format: ocg

Legality

Main 57 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 3 violation(s).

Identity & game plan

• Win condition: Thunder Dragon Titan and Thunder Dragon Colossus Fusion Summons, backed by Bystial and Chaos boss monsters, with a 2-3 card searcher chain to rebuild Thunder Dragon pieces from the GY and banish zone; Link and Synchro beatsticks (Chaos Angel, The Dragon that Devours the Dogma, Accesscode Talker) once the board is established
• Turn 1 (going first): Search a Thunder Dragon with a discard-to-hand searcher (Thunder Dragon, Thunder Dragondark, Thunder Dragonroar) and build toward a Fusion Summon, keeping Ash Blossom or Droll for the first disruption
• Turn 2 (going second): Hand traps (Ash Blossom, Ghost Belle, Evenly Matched, Droll & Lock Bird, Nibiru) to break the opponent's turn-one, then Thunder Dragon recursion and Mulcharmy draws to rebuild
• Recovery: Recover from the GY and banish zone via Thunder Dragonroar, Thunder Dragonhawk and Branded Regained, redrawing into the searchers
• After siding: Not evaluable: side_count is 0, so no post-side plan exists in the export

Why it scores here

The score is set by the deck as a system, not by averaging its cards. Searcher density (17 searcher-text cards, about 84 percent to see one in a 5-card hand) gives reasonable access to the Thunder Dragon engine, but the core archetype cards are only about 44 percent likely in a 5-card opening hand, so bricks and dead Mulcharmy pieces are a real risk. Interaction is the strongest area: 12 hand traps and 12 negation-text cards give about 78 percent odds of at least one hand trap in a 6-card going-second hand. Combo conversion is unmeasured because the export has no recorded boards, so the ceiling rests on Fusion boss text alone. The deck is spread across Thunder Dragon, Mulcharmy, Branded, Bystial, Solemn, Chaos and Ecclesia (exact-name purity 22 percent), which hurts consistency and pilotability. Popularity did not earn points: the Thunder Dragon archetype appears in the usage stats only as a core card, and the deck is illegal, so its score is capped.

Dimension scores

How the score was computed

Strategy profile: Toolbox. Structural ≈ 52, Going First ≈ 50, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist_exposure (-5); no_side_deck (-2); engine_conflicts (-3); illegal_cap (-6). Final formula: No reliable metagame: raw 0.80*52 + 0.20*45 = 50.6, plus modifiers -10 = 40.6; capped to 35 because legality is Illegal (theoretical/structural only)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.84 · 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

• Dense searcher chain (17 searcher-text cards)
• Heavy hand-trap and negation suite (12 hand traps, 12 negation-text cards)
• Multiple Fusion, Link and Synchro boss routes

Weaknesses

• Illegal: three cards over the copy limit
• Multi-archetype build with low exact-name purity (22 percent)
• No side deck
• No recorded combos to confirm conversion

Critical choke points

• Thunder Dragon Colossus and Thunder Dragon Titan both need Thunder Dragon materials, so a searcher brick removes the Fusion route
• Ash Blossom and Fallen & Virtuous at 3 copies are both illegal in this format, so a legal build must cut one copy of each

Recommended changes

Evidence & confidence

• Verified: Main 57, Extra 15, Side 0 in format size range; Three over-limit cards with legal copy counts; Card text for the 57-card main, Extra and listed role tags; Archetype purity 22.2 percent and archetype spread
• Inferred: Searcher access about 0.84 in hand5; Core archetype access about 0.44 in hand5; Hand-trap odds about 0.78 in hand6 going second; Interaction and resilience scores from card text
• Provisional: Meta power null; no dated metagame sample; Matchup fit from archetype-level usage only
• 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 exists in YGOVN — those signals are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied No side deck in export — post-side plan unevaluable Deck title is null