What problem does it solve? Evaluating whether a Yu-Gi-Oh! decklist is competitive requires comparing it against proven top-cut builds, but doing this card-by-card by hand is slow and error-prone. This Skill provides a structured workflow to quantify deck similarity and justify every card inclusion or omission. ## Core Features & Use Cases - Match Rate Calculation: Computes a percentage match rate based on common unique cards, with a 50% threshold to detect variant mismatches. - Per-Card Difference Analysis: Evaluates cards present in only one deck using ydkshow mean values, online meta carry rates, and effect text to decide add, skip, keep, or delete. - Engine and Extra Deck Comparison: Compares core series setcodes, mini-engines from engines.md, hand trap counts, and extra deck summon chains with concrete warning thresholds. - Use Case: After building a new deck variant, gather 5-10 local variants and 3-5 online top-cut lists, then run this workflow to produce a final verdict of pass or needs revision with itemized reasons. ## Quick Start Compare my current decklist against top-cut reference builds and tell me which cards to add or remove with reasons.
