Time Thief Deck #700503 — Yu-Gi-Oh! OCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 50/100 (±7 · Confidence: Medium)

• Primary strategy: Toolbox
• Secondary strategies: Midrange, Xyz (mechanic)
• Format: ocg

Legality

Main 55 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Xyz boss beatdown from the Extra Deck (Superdreadnought Rail Cannon Gustav Rocket 5000 ATK, Liebe 4000 ATK, Gustav Max 3000 ATK, AA-ZEUS 3000 ATK), supported by Time Thief Level 4 bodies that feed Xyz Summons.; Time Thief Redoer and Perpetua recurring Time Thief monsters from the GY and grinding materials, with the Redoer 2400 ATK body as a mid-game threat.
• Turn 1 (going first): Normal Summon or Special Summon a Level 4 Time Thief body (Winder, Adjuster, Regulator, or Startup) and build a 2-Level-4 Xyz; Winder needs an Xyz on the field to activate, so the first turn is often a non-engine turn.
• Turn 2 (going second): Hold Ash Blossom, Skull Meister, Cosmic Cyclone or Forbidden Chalice for the opponent's first big play, then rebuild a Level 4 Xyz from the hand; the hand-trap package reads about 38 percent for at least one hand trap in a 6-card opening (Inferred).
• Recovery: Chronocorder and Time Thief Power Reserve recur from the GY, Startup and Perpetua re-deploy Time Thief monsters, and Small World or Sakitama refills the hand.
• After siding: None: the deck runs no Side Deck, so there is no post-side plan.

Why it scores here

The deck opens a live Xyz engine on the first turn in roughly two-thirds of opening hands, using about 11 Time Thief-or-hand-start copies (Inferred, hypergeometric), but the Xyz bridge needs two Level 4 bodies, so the T1 engine is only partly reliable. Its interaction density is the strongest part of the system: Cosmic Cyclone, Forbidden Chalice, Skull Meister, Ash Blossom, Dark Ruler No More and Kumongous together give many answers, which lifts endboard quality and going-second power. Closing power comes from the Extra Deck bosses, Gustav Rocket and Liebe, and recursion from the GY keeps resources flowing after a disruption. Pulling the score down are a 55-card Main Deck with 49 off-archetype copies (exact-name purity 30 percent), several dead cards (Non-Fusion Area, Dimensional Fissure against its own GY recursion), no Side Deck, and no combo or tournament data. The score comes from consistency and interaction on the system, not from Time Thief's archetype popularity and not from averaging the individual card scores.

Dimension scores

How the score was computed

Strategy profile: Toolbox. Structural ≈ 54, Going First ≈ 55, Going Second ≈ 56, Meta = provisional, Tournament Reliability ≈ 48. Modifiers: engine conflicts (-3). Final formula: 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional, no dated metagame sample)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.69 · 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 package: Cosmic Cyclone x3, Forbidden Chalice x3, Skull Meister x3, Ash Blossom, Dark Ruler No More, Kumongous x3, Dimensional Fissure x3
• Strong Extra Deck closing power: Gustav Rocket 5000 ATK, Liebe 4000 ATK, Gustav Max 3000 ATK (Limited), AA-ZEUS 3000 ATK
• GY recursion and card advantage through Chronocorder, Power Reserve, Startup and Small World

Weaknesses

• Exact-archetype purity is 30 percent: 49 of 70 copies are off-archetype across about 9 sub-archetypes
• 55-card Main Deck with many low-impact slots (Non-Fusion Area, Dimensional Fissure, Mind Control, Therion Discolosseum, Herald of the Abyss)
• No Side Deck: zero post-side plan
• Dimensional Fissure works against the deck's own GY recursion

Critical choke points

• Winder requires an Xyz on the field, so the first turn can be non-engine
• Only 3 exact Time Thief Xyz (Redoer x2, Perpetua x1) anchor the archetype core
• Bosses are spread across unrelated Xyz tribes, so a single disruption can remove the one usable boss

Recommended changes

Evidence & confidence

• Verified: Legality: 55 Main, 15 Extra, 0 Side; OCG BanList check passes (Gustav Max Limited 1/1, Ash Blossom Semi-Limited 1/2); Card text and stats for all 26 Main and 14 Extra distinct cards; Archetype purity: 21 exact-name Time Thief copies, 49 off-archetype copies
• Observed: Usage statistics show three core cards at 75 percent inclusion; none is confirmed present in the deck list (see data gaps)
• Inferred: Opening-hand starter probability about 0.69 going first and 0.76 going second; Brick risk and dead-slot count from the card list; Going-first and going-second power estimates; Interaction quality from text (Ash, Skull Meister, Cyclone, Chalice)
• Provisional: Meta Power (null); Tournament reliability and matchup fit (D13)
• Data gaps: No combos supplied: 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, brick/starter rates) exists in YGOVN; these are Inferred or Unknown Usage-statistics mismatch: Time Thief Redoer (55285840) is listed in the Extra Deck with 2 copies, but the usage block reports copies_in_deck 0 and core-card presence 0; the core-presence signal is unreliable for this deck No Side Deck: post-side performance cannot be evaluated Meta Power is Provisional without a dated metagame sample