Harpie Deck #774148 — Yu-Gi-Oh! TCG

Deck — Deck Power Evaluation

Final Contextual Deck Power: 35/100 (±10 · Confidence: Low)

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

Legality

Main 55 / Extra 15 / Side 0 — status under the rules at evaluation time: Illegal. 3 violation(s).

Identity & game plan

• Win condition: Link and Fusion summons into large Link/Fusion boss monsters (Evil Twin's Trouble Sunny, Underworld Goddess, Fiendsmith's Rextremende, Chaos Angel) after the Fiendsmith and Live Twin starters establish a board; Hand-trap-protected board presence that turns opponent summons and effects into card advantage and tempo
• Turn 1 (going first): Open a starter from the Fiendsmith, Live Twin or Harpie groups, use Lil-la or Ki-sikil generic extenders to reach 2-3 monsters, then Link Summon a boss, with Ash Blossom and Ghost Belle held up for the opponent's response
• Turn 2 (going second): Use hand traps (Ash Blossom, Infinite Impermanence, Effect Veiler, Ghost Belle, Droll and Lock Bird) to disrupt the opponent's board on their turn and then take over the field with a Link or Fusion boss
• Recovery: Recover through GY-based revival: Fiendsmith monsters in the GY, Evil Twin Lil-la and Ki-sikil Link revival, and Harpie's Feather Duster or Raigeki to clear the opponent's field after an interruption
• After siding: No side deck is registered, so no post-side plan exists; a best-of-3 build would need a side list for Spell/Trap and Link-threat answers

Why it scores here

The deck's structural read is built on its system, not on its card list. The archetype core (Fiendsmith, Live Twin/Evil Twin) is present in about 89% of opening 5-card hands, and 20 hand traps plus 13 negate-text cards give it real interaction density, which earns the interaction and going-second dimensions. Closing power is credible because the Extra Deck carries several 3000+ ATK link and fusion bosses, but there are no recorded boards, so the combo ceiling and median are text-only inferences and are scored conservatively. Brick risk is meaningful: 12 single-copy cards, four different engine groups and no side deck pull consistency, resilience-after-brick and post-side scores down. Popularity or archetype representation earned no points, and no card scores were averaged into the deck score. The list is Illegal (three cards over their current copy limits), so the normal Final Contextual score is capped: the theoretical structural result is about 41 and the cap sets the final score at 35.

Dimension scores

How the score was computed

Strategy profile: Midrange. Structural ≈ 55, Going First ≈ 58, Going Second ≈ 62, Meta = provisional, Tournament Reliability ≈ 45. Modifiers: banlist_exposure_illegal_copies (-10); engine_conflict (-2). Final formula: No metagame: 0.80*Structural(55) + 0.20*TournamentReliability(45) = 53; context modifiers -12 gives a theoretical 41; the Illegal status caps the final at 35 (no normal Final Contextual score). Meta Power provisional.

Probability & combo summary

• Opening a starter: P(≥1) ≈ 0.89 · 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 negate suite (20 hand traps, 13 negate-text cards) gives strong interaction on both turns
• Multiple 3000+ ATK link and synchro bosses provide closing power
• Archetype core is present in about 89% of opening 5-card hands

Weaknesses

• Illegal list: three cards exceed their current copy limits
• No side deck, so no best-of-3 adaptation
• Four engine groups share a 55-card main and compete for slots
• Twelve single-copy cards and 22 tech cards raise brick and dead-card risk

Critical choke points

• Fiendsmith Engraver and Fiendsmith's Tract are the only Fiendsmith starters in the list; at legal copies (1 each) the route is fragile
• Link boss summons depend on having two or more monsters in hand or field, so a single hand-trap response can remove the second material

Recommended changes

Evidence & confidence

• Verified: Legality: three cards over copy limits, deck Illegal; Main 55 and Extra 15 are inside the TCG size rules; side 0; Archetype core present in 8 of 8 usage-listed core cards; Card stats and text for Extra Deck bosses (Chaos Angel 3500 ATK, Evil Twin's Trouble Sunny 3300 ATK)
• Inferred: Starter access about 0.89 from hypergeometric estimate; Interaction quality from negate and removal text; Brick risk from single-copy and hand-trap density; Going-first and going-second ratings from text, not from boards
• Provisional: Meta Power (no dated metagame sample); Matchup fit (D13), no tournament data
• Data gaps: No combos supplied, so 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) Meta Power is provisional unless a dated metagame sample is supplied No side deck; post-side behavior cannot be assessed