Therions Deck #771356 — Yu-Gi-Oh! OCG
55 Main, 14 Extra, incl. Nibiru, the Primal Being x3, X-Cross Cannon x3, Ash Blossom & Joyous Spring x3. Created Oct 21, 2026 by YGO Mod.
Created by: YGO Mod (20517634)
Created On: 10/21/2026
Main Deck (55)
- Beast King Barbaros x1
- Droll & Lock Bird x1
- Nibiru, the Primal Being x3
- Therion "King" Regulus x1
- X-Cross Cannon x3
- PSY-Frame Driver x1
- X-Head Cannon x1
- Ash Blossom & Joyous Spring x3
- PSY-Framegear Gamma x1
- Torque Tune Gear x1
- A-Assault Core x1
- B-Buster Drake x2
- C-Crush Wyvern x1
- Union Driver x1
- Y-Yare Head x2
- Z-Zillion Tank x1
- Dark Ruler No More x1
- Harpie's Feather Duster x1
- Lightning Storm x1
- Pot of Prosperity x1
- Super Polymerization x2
- Terraforming x1
- Therion Discolosseum x1
- Triple Tactics Thrust x2
- Unauthorized Reactivation x2
- Union Activation x3
- Union Hangar x3
- Angel Statue - Azurune x1
- Destructive Daruma Karma Cannon x1
- Dominus Purge x2
- Evenly Matched x2
- Grisaille Prison x1
- Infinite Impermanence x3
- Solemn Judgment x1
- Solemn Warning x2
Extra Deck (14)
- ABC-Dragon Buster x2
- Garura, Wings of Resonant Life x1
- Mudragon of the Swamp x1
- Union Controller x1
- XYZ-Hyper Dragon Cannon x1
- Platinum Gadget x1
- Rasterliger x1
- Silhouhatte Rabbit x1
- Underworld Goddess of the Closed World x1
- Ancient Fairy Dragon x1
- Bujintei Tsukuyomi x1
- Cyber Dragon Nova x1
- Tellarknight Ptolemaeus x1
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Deck — Deck Power Evaluation
Final Contextual Deck Power: 32/100 (±10 · Confidence: Low)
| Overall score | Value |
|---|---|
| Structural Deck Power | 46 |
| Going First | 45 |
| Going Second | 52 |
| Meta Power | provisional |
| Tournament Reliability | 35 |
- Primary strategy: Midrange
- Secondary strategies: Toolbox, Stun
- Format: ocg
Legality
Main 56 / Extra 14 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).
Identity & game plan
- Win condition: Union/ABC monster beatdown with Fusion, Xyz and Link boss summons (Inferred from card text; no combo data); Hand-trap-supported Special Summon and boss follow-up (Inferred)
- Turn 1 (going first): Open with Union Hangar or Union Activation to reach an ABC/Union starter, then extend through the equip chain toward a boss Extra Deck monster (Inferred)
- Turn 2 (going second): Use hand traps (Ash Blossom, Infinite Impermanence, Nibiru, Droll & Lock Bird) and Solemn/Dominus negations to slow the opponent's first board, then take over with Union monsters and Extra Deck bosses (Inferred)
- Recovery: Rebuild from the Deck with Therion Discolosseum, Union Driver and Unauthorized Reactivation, which add cards to hand or equip Union monsters (Inferred)
- After siding: Not available: the deck runs no Side Deck, so there is no post-side plan (Verified: Side Deck size 0)
Why it scores here
This list is illegal as submitted: three copies of Ash Blossom & Joyous Spring exceed the OCG Semi-Limited limit of two, so it receives a capped structural-only score rather than a normal Final Contextual score. Its strongest dimension is end-board interaction (D7), driven by the stacked negation and removal set (Solemn x3, Dominus Purge, Lightning Storm, Harpie's Feather Duster, Droll & Lock Bird, Infinite Impermanence, Ash Blossom), which earns credit for the system's interaction density rather than for any single card. Opening reliability is weak: the archetype core appears as 3 copies with about a 25 percent chance of at least one in a 5-card opening hand (Inferred), and the 'Therions' label does not describe the list, since 0 of 70 archetype-linked copies are named Therion and the rest split across ABC, Union, A-to-Z, Solemn and Dominus. Closing power (D9) is credible from ABC-Dragon Buster, Beast King Barbaros, Therion King Regulus and XYZ-Hyper Dragon Cannon, but these boss routes are not verified by recorded boards. Usage stats (3 of 5 core cards present) and the archetype label were not credited as power, and no combo or tournament data exists to measure floor, median or meta fit, so all those dimensions are Inferred or Provisional.
Dimension scores
| # | Dimension | Score | Evidence |
|---|---|---|---|
| D1 | Engine Accessibility & Consistency | 38 | P(>=1 archetype-core copy in 5-card hand) = 0.25 with 3 copies; the engine is split across sub-archetypes, so 2-card bootstrap is unproven (Inferred) |
| D2 | Opening-Hand Quality & Brick Management | 40 | 22 of 36 distinct main-deck cards are singletons, one passcode is unresolved, and several hand traps are dead without a board (Inferred) |
| D3 | Combo Conversion & Ceiling | 45 | No recorded boards; ceiling is inferred from ABC/Union boss text such as ABC-Dragon Buster and XYZ-Hyper Dragon Cannon (Inferred) |
| D4 | Combo Floor & Median Output | 35 | No recorded boards, so median output cannot be measured; left at a low-moderate prior (Provisional) |
| D5 | Interruption Resilience & Route Redundancy | 45 | 13 hand traps and several Union equip routes give some redundancy, but there is little recursion and no independent second line in the data (Inferred) |
| D6 | Resource Economy, Recovery & Grind | 45 | Draw and recovery are limited to Pot of Prosperity, Garura, Union Driver and Discolosseum; no resource signature exists (Inferred) |
| D7 | End-Board & Interaction Quality | 70 | Interaction density is high across negates, destruction and removal, with 13 hand traps and 16 negation-text cards (Verified card text, Inferred quality) |
| D8 | Going-Second & Board-Breaking Power | 60 | Hand traps, Nibiru and Lightning Storm strengthen going-second play, but the going-second combo split is unavailable (Inferred) |
| D9 | Offensive Pressure & Closing Power | 65 | Several 3000-ATK boss monsters (ABC-Dragon Buster, Barbaros, Underworld Goddess, XYZ-Hyper Dragon Cannon) give closing power on paper (Verified stats, Inferred conversion) |
| D10 | Main Deck Efficiency & Flexibility | 40 | 70 of 92 archetype-linked copies are off-archetype, 31 main cards are Level 0, and the list runs 36 distinct main-deck cards (Verified composition, Inferred compactness) |
| D11 | Extra Deck Efficiency & Coverage | 50 | 14 Extra Deck cards split across Fusion, Link, Xyz and Synchro with no clear core, though the Link and Fusion bosses cover several lines (Inferred) |
| D12 | Side Deck Adaptability | 15 | No Side Deck is present, so there is no post-side plan (Verified: Side Deck size 0) |
| D13 | Matchup Coverage & Format Fit | 40 | No tournament or dated meta data; archetype fit is unknown (Provisional) |
| D14 | Pilotability & Error Tolerance | 35 | Layered hand traps, Union equips and multiple Extra Deck routes require many decisions per turn (Inferred) |
How the score was computed
Strategy profile: Midrange 100 (no secondary weighting applied). Structural ≈ 46, Going First ≈ 45, Going Second ≈ 52, Meta = provisional, Tournament Reliability ≈ 35. Modifiers: Illegal copy-limit violation (-12). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional) = 43.5, then Illegal cap -12 = 32; theoretical/structural-only
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
- Dense interaction suite: negation, destruction and hand traps across both turns (Verified card text)
- Several high-ATK boss monsters across Fusion, Link and Xyz (Verified stats)
- Union equip routes give a second board-presence mechanism (Inferred)
Weaknesses
- Illegal as submitted: Ash Blossom copy count exceeds the Semi-Limited limit (Verified)
- No Side Deck, so no post-side adaptation (Verified)
- Low archetype coherence: 0% exact-name purity and 70 off-archetype copies (Verified)
- Opening-hand reliability for any single starter is low (Inferred)
Critical choke points
- Union Hangar and Union Activation are the only confirmed engine starters; if both are missed the Union/ABC line does not start (Inferred)
- Boss summons depend on specific Union/ABC monsters in hand or GY (Inferred)
Recommended changes
| Priority | Remove | Add | Reason |
|---|---|---|---|
| 1 | One copy of Ash Blossom & Joyous Spring | Nothing; this is required to make the list legal | The copy limit is 2 under OCG Semi-Limited status, so the list is illegal at 3 copies (Verified) |
| 2 | The unresolved passcode 10443957 | A verified card that is correctly named in the database | One passcode cannot be resolved, so its role and legality are unknown (Verified data gap) |
| 3 | Two or three off-engine tech cards (e.g. Harpie's Feather Duster, Triple Tactics Thrust) | A 10 to 15 card Side Deck with targeted answers to the main threats | The list has no Side Deck and a weak post-side plan; a Side Deck would add adaptability (Inferred) |
Evidence & confidence
- Verified: Illegal status: Ash Blossom & Joyous Spring at 3 copies vs a legal limit of 2; Side Deck size = 0 (no Side Deck); Archetype purity: 0 exact-name Therion copies out of 70 archetype-linked copies; Card text and stats for the listed cards
- Inferred: Opening-hand probabilities for the core group (0.25 at least one in hand of 5); Engine accessibility, brick rate and recovery plan read from text; Going-first and going-second plans and boss-route ceiling; Interaction quality read from negation and removal text
- Provisional: Meta Power (null, no dated metagame sample); Matchup and format fit (D13, no tournament or meta data)
- Data gaps: Deck title is null, and one passcode (10443957) is unresolved and counted as main No combos supplied, so floor, median and ceiling are text-only inference No tournament link, so archetype meta-share and pilot match record are absent No win-rate telemetry exists in YGOVN (going-first/second, matchup, brick and starter rates) Meta Power is Provisional unless a dated metagame sample is supplied No Side Deck, so post-side adaptability cannot be measured
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