Thunder Dragon Deck #768750 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 25/100 (±10 · Confidence: Low)

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

Legality

Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 4 violation(s).

Identity & game plan

• Win condition: Fusion Summon a large Extra Deck monster (Master of Oz 4200 ATK, Gatling Dragon 2600 ATK, Black Luster Soldier 3000 ATK via its own summon condition, King Dragun 2400 ATK) and push damage through a thin removal and draw shell.; Thousand-Eyes Restrict lock with Other monsters unable to attack or change battle position, combined with Ojama King and Last Warrior from Another Planet board control.
• Turn 1 (going first): Open Thunder Dragon or Gravekeeper's Spy/Night Assailant as starters, use draw and search effects (Upstart Goblin, Jar of Greed, Magician of Faith, Sangan) to find a Metamorphosis, then fuse on T2 for a board presence.
• Turn 2 (going second): Hold removal and disruption (Raigeki Break, Mystical Space Typhoon, Mirror Force, Heavy Storm, Torrential Tribute) for the opponent's line, then rebuild through Metamorphosis and the draw shell.
• Recovery: Recover through Sinister Serpent, Sangan and Magician of Faith searches from the Graveyard, plus Chaos Sorcerer and Black Luster Soldier as board-breaking reloads; the limited Metamorphosis count is the bottleneck.
• After siding: Not evaluable: the deck has no side deck, so there is no post-side plan.

Why it scores here

The deck is scored as a system: its strongest reads are interaction density (22 removal-text cards across Raigeki Break, Mirror Force, Heavy Storm, Torrential Tribute and Ring of Destruction) and a respectable Extra Deck of large fusions. Its engine is weak: Thunder Dragon has three copies and about a 25% chance of appearing in a 5-card opening hand, and the deck has only two Metamorphosis as its sole fusion enabler for 15 Fusion Monsters. Copy spread is 22 singletons across 37 distinct Main Deck cards with 4.3% exact-archetype purity, so consistency is low and hand quality is inconsistent. Three Forbidden cards were run, which makes the list illegal, so the score is capped and labelled theoretical only. Popularity was not used, no archetype core cards were present, and card scores were not averaged.

Dimension scores

How the score was computed

Strategy profile: Toolbox. Structural ≈ 39, Going First ≈ 40, Going Second ≈ 32, Meta = provisional, Tournament Reliability ≈ 30. Modifiers: banlist_exposure_illegal (-12). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers, capped for Illegal status (Meta provisional): 0.80*39 + 0.20*30 - 12 = 25

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.25 · 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

• Broad removal and interaction shell (22 removal-text cards)
• Large Fusion Extra Deck with high-ATK closers (Master of Oz, Gatling Dragon, Black Luster Soldier)
• Multiple draw and search effects that smooth hands

Weaknesses

• Illegal list: three Forbidden cards run, so it cannot be played in OCG as built
• Thunder Dragon engine is only 3 copies (25% in opening 5)
• Only 2 Metamorphosis as fusion enabler for 15 Fusion Monsters
• Exact-archetype purity 4.3%, 67 off-archetype copies, unfocused identity
• No side deck

Critical choke points

• Metamorphosis x2 is the only fusion route
• Thunder Dragon x3 is the only searcher-backed starter

Recommended changes

Evidence & confidence

• Verified: Legality: three Forbidden cards at 1 copy each (legal_copies 0); Composition: 55 Main, 15 Extra, 0 Side; 22 singleton cards; exact-name purity 4.3%; Card text and stats for all listed cards
• Inferred: Opening-hand starter probability 0.2529 and fusion-access dependency on 2 Metamorphosis; Interaction density assessed as high from removal-text count; Going-first and going-second power estimates from text and composition
• Provisional: Meta Power (no dated metagame sample); Matchup coverage and format fit (no tournament link)
• Data gaps: No recorded combos; 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/second, matchup and brick rates are Inferred or Unknown Meta Power is Provisional without a dated metagame sample No guides attached to this archetype Deck title is null