Kashtira Deck #762771 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 61/100 (±6 · Confidence: Medium)

• Primary strategy: Midrange
• Secondary strategies: Stun, Combo
• Format: master-duel

Legality

Main 40 / Extra 15 / Side 0 — status: Legal.

Identity & game plan

• Win condition: Fusion, Link and Xyz bosses (Tearlaments Rulkallos 3000 ATK, Tearlaments Kaleido-Heart 3000 ATK, Fiendsmith's Desirae 2800 ATK, The Undying Legion 2700 ATK) reached through Tearlaments and Kashtira starters; Worldsea Dragon Zealantis and Fiendsmith's Agnumday link pressure once the board is established
• Turn 1 (going first): Open a Tearlaments starter (Scream, Havnis, Reinoheart or Scheiren), search or summon into Kashtira Fenrir or Tearlaments Kitkallos, then Fusion or Link into a 2500+ ATK boss while holding Ash Blossom and Droll as responses
• Turn 2 (going second): Use the six-card hand to answer the opponent's first summon chain with Ash Blossom, Droll and Maxx C, then rebuild through a Tearlaments starter into the same Extra Deck boss package
• Recovery: Recur from the GY with Fiendsmith's Engraver, Fiendsmith's Lacrima, Tearlaments Reinoheart and Tearlaments Kitkallos, and re-search with Tearlaments Scream and Fiendsmith's Tract
• After siding: None. The deck runs 0 side cards (legal in Master Duel, side limit 0 to 15), so there is no post-side plan to evaluate.

Why it scores here

The deck reliably opens a Tearlaments starter in most hands: 14 copies of starter-role cards give roughly an 82% chance of at least one in a five-card opening hand (Inferred), and the search density (14 searcher-text cards) keeps the engine live by turn two. Its interaction package is the main reason for the score: six hand traps (Ash Blossom, Droll and Lock Bird, Maxx C), plus negation and removal text on Tearlaments Cryme, Sulliek, Metanoise and the Extra Deck negators, gives roughly a 65% chance of a hand trap on the second player's six-card hand (Inferred). Conversion is credited from the text, not from recorded boards, since no combos were supplied, so the ceiling (3000 ATK Fusion bosses) is scored separately from the median output, which is scored lower. Popularity did not earn points: only 3 of 26 main-deck names are exact Kashtira cards, and the list splits across Tearlaments, Fiendsmith and Mulcharmy engines that partly conflict. The score comes from consistency, recovery and interaction on the system; no card scores were averaged.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 67, Going First ≈ 64, Going Second ≈ 70, Meta = provisional, Tournament Reliability ≈ 60. Modifiers: banlist exposure (-2); 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) ≈ 0.82 · key two-card combo ≈ — · full-brick estimate ≈ 0.05 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Starter redundancy: four Tearlaments starters across 11 copies with high searcher density
• Layered interaction: six hand traps plus negation and removal text
• Extra Deck coverage: 15 slots across Fusion, Link and Xyz with multiple 2700+ ATK bosses
• Recursion from GY and Extra Deck keeps the grind going

Weaknesses

• No side deck, so no post-side adaptation
• Only 5.5% exact Kashtira purity; three engines compete for the same slots
• Several one-copy Limited cards form single points of failure
• No recorded combos or tournament data to verify conversion

Critical choke points

• Hand traps are dead without a matching trigger, so an unanswered opening starter can end the turn
• Tearlaments and Kashtira bosses depend on a single Kitkallos or Kashtira Fenrir line
• Fiendsmith's Desirae and Lacrima require Fiendsmith cards that compete for slots

Recommended changes

Evidence & confidence

• Verified: Legal in Master Duel: 40 main, 15 extra, 0 side; all 12 restricted cards at their legal copy limits; Composition counts: 26 distinct main, 6 hand traps, 14 searchers, 5 negation and 11 removal texts; Usage core present 3 of 4 (75%); S:P Little Knight absent
• Inferred: Starter, hand-trap and brick probabilities (hypergeometric); Combo ceiling and median from card text, since no boards exist; Interaction quality and recursion depth from text; Going-first and going-second power estimates
• Provisional: Meta Power (null) and D13 matchup fit; Side-deck adaptability (D12), since no side cards exist; Tournament reliability, which depends on the provisional matchup read
• Data gaps: No combos supplied: combo floor, median and ceiling are text-only inference No tournament link: archetype meta-share and per-pilot record absent No win-rate telemetry for going-first/second, matchup, or brick/starter/OTK rates Meta Power is provisional without a dated metagame sample Card descriptions are truncated excerpts, so some effect details are unverified Deck title is null