MASTER EVERY MATCHUP

About this demo: the live production app runs on a Node/Express backend — live Riot API calls, user accounts, a desktop Champ Select overlay that talks to the League client, email report submissions — that can't run on a free static host. Everything that can run without a server is fully wired up: this page (plus Champions and Improve above) bundles a real export straight out of the production database and matchup-guide files — 5,349 champion pairs with real aggregated win rates, 8,785 hand-written matchup guide entries, and builds/runes for 172 champions — loaded client-side from a static JSON file, plus the site's real improvement-guide articles. Champion, item, and rune icons load live from Riot's Data Dragon CDN. Accounts & LP tracking, on-demand live match collection, the Champ Select overlay, email reports, and the downloadable desktop app are backend/device-bound features and aren't part of this static build.