Exosister Deck #766533 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 59/100 (±7 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Level 4 Exosister summons feeding Xyz boards (Magnifica, Karmael, Mikailis, Kaspitell) that attack and banish; Tiras and TY-PHON as backup Xyz bodies; Ecclesia and Albion as off-archetype extra-deck options
• Turn 1 (going first): Search Exosister Betrayal or Pax, summon Level 4 Exosisters (Elis, Martha, Stella, Irene, Sophia), then Xyz Summon a Mikailis or Karmael
• Turn 2 (going second): Hold hand traps (Ash Blossom, Infinite Impermanence, Ghost Ogre, Droll, Maxx C, Effect Veiler) to answer the opponent's first board, then build the Exosister Xyz board
• Recovery: Re-search with Pax, Betrayal and Irene; keep Ash and Ghost Ogre in hand as the recovery resource
• After siding: No side deck in this list (side 0); no post-side plan can be evaluated

Why it scores here

The score comes from how the Exosister system opens and converts on the board, not from averaging card powers or from the archetype's popularity. Four 3-copy starters (Elis, Martha, Betrayal, Pax) give about a 34% chance each of appearing in a 5-card opening hand, and the 9 searcher-text cards lift the chance of at least one search to about 74% (Inferred). The 12 hand traps and 8 negation-text cards give strong interaction on the opponent's turn, which is the deck's main going-second strength. Its ceiling is Xyz boards with 2500 to 2900 ATK and banish or destroy effects, but there is no recorded combo data, so median output and ceiling are text-only estimates. The deck has no side deck, 27 off-archetype copies (about 49%), and its Extra Deck Xyz access depends on the opponent moving cards out of a graveyard, so it scores below its interaction strength. Popularity and usage stats confirm the list is real and accessible; they did not add points.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 63.7, Going First ≈ 66, Going Second ≈ 67, Meta = provisional, Tournament Reliability ≈ 57.7. Modifiers: Engine conflicts and splash (-2); Banlist exposure (-1). Final formula: Structural = sum(weight x score, D13 excluded) / 95 (meta-neutral, renormalised); Final = 0.80*Structural + 0.20*TournamentReliability + ContextModifiers (Meta provisional)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.34 · 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

• Four 3-copy starters and 9 searcher-text cards make the engine reliable on turn 1 and 2
• 12 hand traps plus 8 negation-text cards give strong going-second interaction
• Several Xyz finishers with 2500 to 2900 ATK and banish or destroy effects

Weaknesses

• No side deck, so no post-side adaptation
• Exosister Xyz access depends on the opponent moving cards out of a graveyard
• Off-archetype splash (Mulcharmy, Branded, Ecclesia) dilutes the engine

Critical choke points

• Level 4 Exosister summons: several Xyz routes need specific Level 4 Exosisters on the field
• Martha's summon condition (no monsters or only Xyz on the field) limits its use

Recommended changes

Evidence & confidence

• Verified: Legal in Master Duel: 40 main (within 40 to 60), 15 extra (within 0 to 15), 0 side (within 0 to 15); Restricted cards within legal copies: Maxx C 1/1 Limited; Droll and Fallen 2/2 Semi-Limited; Hypergeometric draw numbers recomputed and consistent (0.3376 for 3 copies in 5 cards)
• Observed: Usage stats show the archetype core present in this list (flags undercount Extra Deck core, see data gaps)
• Inferred: Starter reliability and brick risk from hypergeometric odds and card text; Interaction density and going-second strength from role hints and card text; Ceiling and floor estimates from Xyz card text (no recorded boards)
• Provisional: Meta Power and matchup fit: no dated metagame sample or tournament link
• Data gaps: Deck title is null 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 for going-first, going-second, matchup or brick rates Meta Power is Provisional without a dated metagame sample usage_statistics in_this_deck flags read false for Magnifica, Karmael, Mikailis, Gibrine, Asophiel and Kaspitell, which are present in the cards list; core coverage (52%) is understated, closer to 80% of named core cards present archetype_core_group reports 29 copies while archetype_spread reports 28 exact-name Exosister copies; the difference is unexplained No side deck in the list, so the side-deck dimension is scored on composition only