Therions Deck #769673 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±8 · Confidence: Low)

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

Legality

Main 59 / Extra 16 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Large Xyz/Link boards from the Train/EARTH Machine engine, led by Superdreadnought Rail Cannon Gustav Rocket (5000 ATK) and Juggernaut Liebe (4000 ATK), with hand-trap and spell-based interaction to protect the board; Ghost Belle, Carnot and Gizmek bodies plus Jizukiru as a going-second board presence
• Turn 1 (going first): Open Exceptional Schedule or Night Train Blue Traveler to reach EARTH Machine Level 10 monsters, Normal Summon Heavy Armored Knight Babeldecker, then build toward a Train Xyz; hold Ash Blossom, Maxx C and Red Reboot for the opponent's first responses
• Turn 2 (going second): Use hand traps (Ash Blossom, Droll & Lock Bird, Maxx C, Ghost Belle, Red Reboot, Nibiru) to disrupt the opponent's setup, then rebuild through Night Train and Schedule searches
• Recovery: Night Train recursion from the GY, Ancient Gear Box and Clockwork Knight searches, plus Pot of Sloth for card advantage
• After siding: Not assessable: the deck has no Side Deck, so there is no post-side plan

Why it scores here

The deck is illegal as submitted: three copies of Superdreadnought Rail Cannon Gustav Max against a Limited limit of one, and sixteen Extra Deck cards against a maximum of fifteen. Under the rubric it is capped at a low theoretical score and is scored structurally only. Its reliable opening is the Train starter package (Exceptional Schedule, Urgent Schedule, Night Train Blue Traveler), with a searcher present in about 81% of five-card hands (Inferred). Its interaction density is high, with eleven hand traps plus Ash Blossom, Maxx C, Red Reboot and Heavy Storm, and its Extra Deck ceiling reaches 5000 ATK (Gustav Rocket). Median output is not measured, since no combos were supplied. The deck is spread across Train, Infinitrack, Cyber, Ancient Gear, Qli and Harpie pieces (75 off-archetype copies), so the score reflects the system's consistency and interaction, not the Therions name or the sum of card scores. Popularity did not earn points: the archetype usage data shows the deck runs only 2 of 21 core cards.

Dimension scores

How the score was computed

Structural ≈ 49.7, Going First ≈ 45, Going Second ≈ 50, Meta = provisional, Tournament Reliability ≈ 35. Modifiers: Illegal submission cap (-6.8); Banlist exposure (-4); Engine conflicts (-4); No Side Deck (-2). Final formula: Illegal cap applied: 0.80*Structural(49.7) + 0.20*TournamentReliability(35) = 46.8, then modifiers total -10 (banlist exposure -4, engine conflict -4, no Side Deck -2) = 36.8, then capped low at 30 for illegal submission (Meta provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.81 · 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

• High hand-trap and negation density (11 hand traps, Ash Blossom, Maxx C, Red Reboot, Droll & Lock Bird)
• Searcher text in about 81% of opening hands gives a reliable engine start
• Strong Extra Deck closers at 4000 to 5000 ATK

Weaknesses

• Illegal as submitted (copy limit and Extra Deck size)
• Three engine families with heavy off-archetype content
• No Side Deck for best-of-3
• Large brick and dead-card share from single-copy tech

Critical choke points

• Trains need EARTH Machine Level 10 monsters; losing them to hand traps or Super Dora's effect halts the Xyz line
• Gustav Max copies are Limited, so the Xyz plan depends on a legal list that the current 3-copy build cannot run

Recommended changes

Evidence & confidence

• Verified: Gustav Max runs 3 copies against a Limited limit of 1 (legal copies 1); Extra Deck is 16 cards against a maximum of 15; Main Deck is 59 cards, within the 40 to 60 range; No Side Deck (0 cards); Banlist status of Limited/Semi-Limited cards as listed in the evidence
• Observed: Usage data: the deck runs 2 of 21 core archetype cards (9.5%)
• Inferred: Opening-hand searcher odds of about 0.81 from the hypergeometric estimate; Brick and dead-card rate from copy histogram and card text; Combo ceiling from the Extra Deck stats and text, since no boards exist; Interaction quality from negation and removal text
• Provisional: Meta Power (null) and matchup fit (D13), since no dated metagame sample is supplied
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot record are absent No win-rate telemetry exists in YGOVN, so going-first/second and matchup rates are unknown Meta Power is provisional without a dated metagame sample Guides: 0 attached