Expected-value tracker for Courtyard mystery packs: live EV, observed odds and hit rates from ~10,000 recorded pulls.
It tells you when not to buy. A pack with three pulls can show a spectacular EV ratio precisely because it has three. So every pack must clear a gate — 30+ pulls, fresh data, 70+ data quality — before it can carry a buy call. The budget tool can recommend holding cash.
No resale estimates, no AI-generated metrics. Every formula published.
Next.js, TypeScript, Supabase.
