Exosister Deck #726465 — Yu-Gi-Oh! Master Duel

Deck — Deck Power Evaluation

Final Contextual Deck Power: 68/100 (±6 · Confidence: Medium)

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

Legality

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

Identity & game plan

• Win condition: Xyz Summon Exosister boards with interaction and chip damage; Grind through resource advantage via Exosister recursion and draw effects
• Turn 1 (going first): Establish Xyz monsters (Mikailis, Magnifica, Karmael) with monster negation; protect with set Exosister Spell/Trap
• Turn 2 (going second): Use hand traps (Ash, Impermanence, Maxx C) to disrupt opponent; leverage Exosister triggers on opponent GY activation to make Xyz and break board
• Recovery: Opponent GY manipulation triggers Exosister Xyz access; recursion via Betrayal and individual monster GY effects generate resources
• After siding: No side deck available; main deck static across all games

Why it scores here

This Exosister deck opens its core engine reliably (P[≥1 starter] ≈ 99.96%) with 3x Pax, Betrayal, Elis, Martha, and Ichiki Sayori-Hime providing consistent entry into Xyz plays. The median board produces two to three negations and disruption via Exosister boss monsters (Mikailis, Karmael) plus set interaction; ceiling boards layer more with Magnifica access (not present). Resilience is moderate—the deck has only two independent starter lines (Martha-lock vs Elis-plus-Pax), and disruption to one choke point (Pax or Betrayal) narrows recovery. Resource economy is solid via Exosister Sophia/Irene draw and recursion; hand-trap count (8 copies) supports going-second. Offensive closing is hampered by low ATK monsters and reliance on chip damage rather than lethal pressure. This is not a meta-dominant list: critical missing cards (Magnifica, Karmael, Mikailis, Zeus, Gibrine) reduce extra-deck flexibility, and there is no side deck (Master Duel constraint). The score reflects system consistency and interaction quality, not popularity or card-by-card averaging.

Dimension scores

How the score was computed

Strategy profile: Combo. Structural ≈ 66, Going First ≈ 70, Going Second ≈ 66, Meta = provisional, Tournament Reliability ≈ 64. Modifiers: Missing core Extra-Deck cards (-3); No side deck (Master Duel format) (-2); Moderate starter redundancy (-1). Final formula: 0.80*Structural + 0.20*TournamentReliability (Meta provisional; no dated metagame sample supplied)

Probability & combo summary

• Opening a starter: P(≥1) ≈ 1 · key two-card combo ≈ — · full-brick estimate ≈ 0 (all Inferred)
• Combo output: best PowerIndex —, median —, board-per-starter —
• Turn order: 0 going-first lines vs 0 going-second lines

Strengths

• Archetype core extremely reliable (99.96% P[opener] via Pax, Betrayal, Martha, Elis, Ichiki)
• Exosister Xyz monsters (Mikailis, Karmael) provide multiple negation layers and GY-dependent recursion
• Opponent GY activation triggers Exosister Xyz summon—reactive advantage in midrange/grind games
• Hand-trap suite (8x) and tech removal (Forbidden Droplet, Returnia) support both going-first and going-second
• Resource economy sustained via Sophia/Irene draw and Betrayal double-search
• No internal engine conflicts; supports diverse starter lines

Weaknesses

• Missing three 100% core extra-deck cards (Magnifica rank-8, Karmael rank-4, Mikailis rank-4) limits ceiling and backup XYZ access
• Single most-critical choke point: Betrayal activation; disruption to Pax/Betrayal severely limits turn-1 board
• Starter redundancy between Martha and Pax narrows truly independent lines
• Low offensive pressure: no boss monster >2800 ATK, no piercing, no direct damage; relies on opponent error or extended grind
• No side deck in Master Duel; cannot tune for matchups post-game-1
• Median board output (2–3 negations) modest against meta decks with 4+ disruptions

Critical choke points

• Exosister Betrayal: hand-reading opponent and disruption to its activation collapses T1 setup
• Extra-Deck Xyz access: without Magnifica/Karmael/Mikailis summoned, backup lines thin quickly
• Martha lock: prevents non-Exosister special summons, locks self into archetype engine mid-combo

Recommended changes

Evidence & confidence

• Verified: Legality: Legal (40 main, 15 extra, 0 side; all restricted cards within copy limits); Composition: 19 distinct main, 10 distinct extra; archetype_purity 50.9%; Usage statistics: 13/22 core cards present; 59% core pct; Card text: Elis, Martha, Betrayal, Pax, Ichiki, Karmael, Mikailis, Magnifica (from descriptions); Hand-trap count: 8 copies (Ash ×3, Impermanence ×3, Maxx C ×1, Dimension Shifter ×1)
• Observed: Archetype meta-share in Master Duel mid-tier (from guide snippets mentioning Exosister viability); Typical Exosister Extra-Deck inclusion patterns (from usage_statistics core_cards)
• Inferred: P(≥1 starter in hand 5) = 0.9996 via archetype_core P ≥1; Median board output 2–3 negations from Mikailis/Karmael/Kaspitell/Asophiel text reading; Ceiling board 3–5 negations if Magnifica + full Karmael/Mikailis stack present; Brick estimate <0.5% from role-tag and copy histogram; Resource economy +1 to +2 per turn via draw effects (Sophia, Irene, Maxx C, Mulcharmy); Starter redundancy assessment: Martha and Pax both summon from deck after Exosister control; Offensive closing: low ATK (max 2500), no piercing, chip-damage only; lethality multi-turn
• Provisional: Meta Power = null (no dated metagame sample supplied; tournament_context unavailable); Matchup win-rates unknown; format fit inferred from Exosister archetype mid-tier status; Post-side adaptability scores 0 due to Master Duel constraint; cannot assess best-of-3 performance
• Data gaps: No combos supplied—board structure and power ceiling inferred from card text and role hints only No tournament link—archetype meta-share context absent; matchup data unavailable No win-rate telemetry—going-first/second brick rates, matchup-specific outcomes unknown Master Duel constraint: no side deck; best-of-3 strategy cannot be evaluated Missing 9 core cards from usage statistics limits reconstruction of optimal Exosister build