Therions Deck #771934 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 30/100 (±10 · Confidence: Low)

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

Legality

Main 50 / Extra 21 / Side 0 — status under the rules at evaluation time: Illegal. 2 violation(s).

Identity & game plan

• Win condition: Extra Deck boss monsters (Orcustrion 3000 ATK, Borrelsword Dragon 3000 ATK, Super Starslayer TY-PHON 2900 ATK) reached through the Orcust engine; Orcust/World Legacy recursion and banished-Machine link lines (Galatea, Dingirsu, Enlilgirsu, Longirsu)
• Turn 1 (going first): Open on an Orcust starter (Orcust Harp Horror, Cymbal Skeleton, Brass Bombard, Girsu) to search or revive into Link and Xyz boss summons, using Orcustrated Return or Babel for card flow
• Turn 2 (going second): Use the six-card hand's hand traps (Ash Blossom x3, Infinite Impermanence x2, Droll & Lock Bird) and Disablaster or Orcustrion-era negations to stop the opponent's first board, then rebuild through the GY
• Recovery: Banish Orcust monsters from the GY to Special Summon starters again, recurse with Orcustrated Return or Babel, and use Galatea-I to add a World Legacy monster or Orcustrated Babel
• After siding: None: the deck has no Side Deck, so there is no post-side plan

Why it scores here

This list is Illegal: Ash Blossom & Joyous Spring is run three times against a limit of two, and the Extra Deck holds 21 cards against a maximum of 15. Under the Illegal rule it is capped at 30 and labelled structural-only, so the score is a theoretical read, not a normal contextual score. The structural read comes from the system: the three-copy starters give about a 28% chance of at least one in an opening five (Inferred), searcher text reaches about 73% of openings, and the deck runs 6 hand traps, 12 negation texts and 23 removal texts, with Orcustrion, Borrelsword and Starslayer as closers. Recorded combo data is absent, so the ceiling and median are text-only inference and not measured output. The Therions label does not match the card pool, which is Orcust-dominant (23 Orcust copies, 71 off-archetype copies), and the 95% inclusion of Therion King Regulus confirms the list is real, not that it is strong. Points were not earned by averaging card scores, and the deck has no Side Deck, so post-side adaptability is scored at 10.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 45.6, Going First ≈ 44, Going Second ≈ 46, Meta = provisional, Tournament Reliability ≈ 38. Modifiers: banlist exposure (-6); extra_deck_over_size (-3). Final formula: Illegal: 0.80*Structural(45.6) + 0.20*TournamentReliability(38) + ContextModifiers(-9) = 35.1, capped to 30 under the Illegal rule; structural-only, Meta provisional

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.28 · 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: 6 hand traps, 12 negation texts, 23 removal texts
• Multiple Extra Deck closers at 2900 to 3000 ATK
• Recursion (Orcustrated Return, Babel, Cymbal Skeleton) gives card flow after disruption
• Engine core (Orcust) is real: 23 copies and high usage inclusion of Therion King Regulus (95%)

Weaknesses

• Illegal list: Ash Blossom 3/2 copy limit and Extra Deck 21/15
• No recorded combos, so ceiling and median are not measured
• Archetype label (Therions) does not match the Orcust-dominant pool
• No Side Deck
• Heavy singleton density (22 of 34 distinct main cards) reduces consistency

Critical choke points

• Single-copy staple restrictions (Droll & Lock Bird, Harpie's Feather Duster, Foolish Burial, Reasoning, S:P Little Knight) each cap at one copy
• Extra Deck over 15 cards means the list cannot be played as built

Recommended changes

Evidence & confidence

• Verified: Illegal status: Ash Blossom 3 copies vs 2 legal; Extra Deck 21 vs maximum 15; Side Deck is empty; Copy histogram 22/8/4 and card texts for listed cards; Therion King Regulus at 95% usage inclusion
• Inferred: P(at least one starter in opening hand) about 0.28 for 3-copy starters; Searcher access about 0.73 and hand-trap access about 0.56; Interaction density and closing power from card text; Going-second hand-trap value
• Provisional: Meta Power null; Matchup and format fit (no dated meta or tournament link)
• Data gaps: No combos supplied: floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot record absent No win-rate telemetry: going-first, going-second, matchup and brick rates are Inferred or Unknown Meta Power provisional: no dated metagame sample Deck title is null and the archetype label (Therions) differs from the Orcust-dominant card pool No guides attached (0 snippets)