Thunder Dragon Deck #772277 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 42/100 (±7 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Toolbox, Combo
• Format: ocg

Legality

Main 60 / Extra 15 / Side 0 — status: Legal with warning.

Identity & game plan

• Win condition: Thunder Dragon Titan and Thunder Dragon Colossus Fusion Summons (Thunder Dragon Titan, Thunder Dragon Colossus, Invoked Oceanus, Hyperinvoked Aeon) that take over the board, backed by Thunder Dragonlord and Thunder Dragonduo as Special Summon-enabled beaters.; Thunder Dragon monsters recycled from the GY and banish zone by Thunder Dragonroar, Thunder Dragonhawk and Thunder Dragondark, with Invoked and Aleister Fusions as a second engine.
• Turn 1 (going first): Open with a Thunder Dragon searcher (Thunder Dragon, Dragonmatrix or Dragondark) to reach a Polymerization or Thunder Dragon Fusion; the 2-card bootstrap is unreliable at P(>=1 starter in 5) ≈ 0.23 for any single named card.
• Turn 2 (going second): Use Ash Blossom, Effect Veiler or Droll & Lock Bird to answer the opponent's first extender, then rebuild through the Thunder Dragon searchers into a Fusion; hand traps are the only reliable early interaction.
• Recovery: Recover from GY/banish via Thunder Dragonroar, Dragonhawk and Dragondark, whose searchers reload the Thunder Dragon chain; Thunder Dragon Fusion can also be activated from the GY to add another Fusion spell.
• After siding: No side deck in the export (side_count 0), so no post-side plan can be evaluated; treat this as a main-deck-only, untested build.

Why it scores here

This is a 60-card OCG Thunder Dragon list with 15 Extra Deck cards, and it is legal with a warning: Ash Blossom, Maxx C, Harpie's Feather Duster, Monster Reborn, Droll & Lock Bird, Gold Sarcophagus and S:P Little Knight are at their Limited or Semi-Limited caps. The engine has real searcher density (28 searcher-text cards and 14 removal-text cards), and the Thunder Dragon Fusions give it a closing threat, but the core engine is thin: the archetype-core card Thunder Dragon is the only usage-listed core present, and its exact-name purity is only 29%, with 53 off-archetype copies. The deck scores in the low-middle range because consistency, going-second conversion and a side deck are all weak or missing, not because it averages its cards. Popularity was not a factor: usage stats and tournament data are sparse, so the score is driven by the system's structure and the lack of any recorded combos.

Dimension scores

How the score was computed

Strategy profile: 0.7 Midrange / 0.3 Combo. Structural ≈ 46, Going First ≈ 44, Going Second ≈ 39, Meta = provisional, Tournament Reliability ≈ 40. Modifiers: banlist_exposure (-3); unrecoverable_choke_point (-2); dependence_on_one_extra_deck_card (-2); hard_garnet_burden (0); no_side_deck (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.23 · 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 text (28 searcher-text cards) gives a high chance of finding a Thunder Dragon or Fusion starter in any opening hand
• Fusion and Link closing threats (Thunder Dragon Titan 3200 ATK, Colossus 2600, Lord 3000, Duo 2800) are strong on the board
• Five hand traps plus Infinite Impermanence give layered answers to first extenders
• GY/banish recursion through Dragonroar, Dragonhawk and Dragondark sustains the engine after a stop

Weaknesses

• Single-card starters: each 3-copy Thunder Dragon card has only about a 23% chance to appear in the opening five cards, so the deck depends on searcher chains rather than a reliable opening
• Thin core: only one of the three usage-listed archetype core cards is present, and exact-name purity is 29%
• No side deck: a best-of-3 build has no answer to matchups
• Heavy reliance on Limited and Semi-Limited staples with no recorded combos to show whether the engine converts

Critical choke points

• Polymerization or Thunder Dragon Fusion must be drawn or searched to reach any Fusion closing threat
• Thunder Dragon Titan and Colossus must both be available for the main closing line; losing them leaves only Lord and Duo
• Turn-1 interaction is limited to hand traps (Ash Blossom, Effect Veiler, Droll & Lock Bird, Maxx C) that can each be stopped by a single effect

Recommended changes

Evidence & confidence

• Verified: Legality: 60 Main, 15 Extra, Legal with warning; 6 Limited cards and Ash Blossom at Semi-Limited; Thunder Dragon is the only usage-listed archetype core card present (1 of 3, 33.3%); Thunder Dragon Titan 3200 ATK, Colossus 2600, Lord 3000, Duo 2800 closing bodies; Side deck is empty (side_count 0)
• Observed: Searcher-text count (28) and removal-text count (14) are from text roles, not recorded boards
• Inferred: P(≥1 starter in opening 5) ≈ 0.23 per 3-copy card; 0.96 for the searcher group; Going-second hand-trap access ≈ 0.42 in the opening six; Recursion and searcher density give a long-game grind and a reasonable D6; Interaction density from five hand traps plus Infinite Impermanence
• Provisional: Meta power and format fit (no tournament link or dated meta sample); Median output and combo floor (no recorded combos)
• 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 1 passcode(s) in CardIDList could not be resolved to a card (card_id 86120751, counted as main); its contribution is unknown no side deck in the export (side_count 0) — D12 and post-side plan cannot be measured no win-rate telemetry exists in YGOVN (going-first/second, matchup, game-level, brick/starter/OTK rates) — those signals are Inferred or Unknown Meta Power is Provisional unless a dated metagame sample is supplied