Kashtira Deck #507366 — Yu-Gi-Oh! TCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 20/100 (±10 · Confidence: Low)

• Primary strategy: Midrange
• Secondary strategies: Combo, Stun
• Format: tcg

Legality

Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 4 violation(s).

Identity & game plan

• Win condition: Marincess Link monsters (Marbled Rock, Great Bubble Reef, Aqua Argonaut, Zealantis) attacking from a board built by Link Summons and Marincess recursion; Kashtira Fenrir and Number 41 boards, both of which are Forbidden in this format and cannot be legally run
• Turn 1 (going first): Open a Marincess starter (Springirl, Sea Horse, Blue Tang or Pascalus), search with Cynet Mining or Marincess Dive, then Link Summon Sea Angel or Blue Slug into a WATER Link board
• Turn 2 (going second): Hold Ash Blossom, Ghost Belle and Infinite Impermanence as hand traps, then rebuild with Marincess Wave and Coral Triangle; legal copy limits are the main constraint
• Recovery: Recur Marincess monsters and Spell/Traps from the GY through Blue Slug, Coral Anemone and Marbled Rock
• After siding: Not assessable: the deck has no side deck (Side Deck size 0), so there is no post-side plan

Why it scores here

This list cannot be played as built: it runs three Dimensional Barriers, two Kashtira Fenrirs and several other Forbidden cards, and it has no Side Deck. The structural read is that Marincess provides a reasonably redundant starter base, with 13 searcher-text cards giving about a 76 percent chance of at least one search in the opening five, and the Marincess Link chain supplies real pressure. Interaction is dense (16 hand traps and 17 negation-text cards) and gives a strong going-second read. Those strengths are offset by brick risk from 23 tech-flagged cards, a 2.9 percent exact-archetype purity, and no recorded boards, so the ceiling and median cannot be separated with evidence. Popularity was not credited: the usage stats show Kashtira core cards almost entirely absent from this list, and card scores were not averaged. The structural score (about 52) was computed as a Midrange-weighted blend and is shown for reference only; because the deck is Illegal the final score is capped at 20.

Dimension scores

How the score was computed

Strategy profile: Midrange primary with Combo and Stun as secondary tags; the blend ratio is not separately weighted. Structural ≈ 52, Going First ≈ 50, Going Second ≈ 58, Meta = provisional, Tournament Reliability ≈ 42. Modifiers: banlist exposure (-8); no Side Deck (-4); illegal_list_cap (0). Final formula: Illegal cap applied. Theoretical uncapped value = 0.80*Structural(52.4) + 0.20*TournamentReliability(42) + modifiers(-12) = about 38; the deck is Illegal, so the reported score is capped at 20 (structural-only, not a normal Final Contextual score). Meta Power is null/Provisional.

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.76 · 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 hand-trap and negation suite (16 hand traps, 17 negation-text cards) gives strong going-second interaction
• Searcher density (13 cards) gives about a 76 percent chance of at least one search in the opening five
• Link Extra Deck coverage (13 Link monsters) gives reusable Link Summon routes

Weaknesses

• Illegal list: Forbidden cards and copy limits break the deck as built
• No Side Deck, so post-side adaptability is effectively absent
• Low exact-archetype purity (2.9 percent) and 23 tech cards raise brick risk
• No recorded boards, so the combo ceiling and median are unmeasured

Critical choke points

• The Marincess Link chain depends on early Link Summons; a single interruption on the starter could stop the turn
• Forbidden Kashtira and Number 41 cards are in the core and must be removed before the deck is playable

Recommended changes

Evidence & confidence

• Verified: Legality: deck is Illegal; Forbidden and over-limit cards are listed in the evidence; Composition: 55 Main, 15 Extra, 0 Side; 13 Link and 2 Xyz in the Extra Deck; Archetype purity 2.9 percent exact; Marincess and generic dominate the spread; Usage statistics: the deck contains 2 of 25 core Kashtira cards (8 percent present)
• Inferred: Hypergeometric starter, searcher and hand-trap odds; Brick risk from 23 tech cards and 11 three-copy cards; Interaction density and going-second strength from card text; Structural dimension scores D1 to D14
• Provisional: Matchup and format fit (D13), since no dated metagame sample is supplied; Meta Power (null)
• 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 are absent No win-rate telemetry exists in YGOVN, so brick, starter and matchup rates are Inferred or Unknown Meta Power is Provisional without a dated metagame sample No Side Deck supplied, so the post-side plan cannot be assessed