In Marvel's Spider-Man collector boosters (12 packs per box), you can expect about 4.17 showcase cards per box - roughly 0.347 per pack. That works out to a 98.4% chance of pulling at least one showcase card per box, or about 1 in 2 for your first hit. The chase end is often Gwen Stacy // Ghost-Spider (about 1 in 5 for that specific printing).
Showcase frame treatments across multiple slots.
Per-printing expected pulls and odds of at least one per box.
| Card | Price | Expected / box | P(≥1) | 1 in N boxes |
|---|---|---|---|---|
Gwen Stacy // Ghost-Spider #209 · mythic | $18.00 | 0.214 | 19.3% | 1 in 5 |
Miles Morales // Ultimate Spider-Man #211 · mythic | $9.50 | 0.214 | 19.3% | 1 in 5 |
Spider-Punk #210 · rare | $5.84 | 0.503 | 39.5% | 1 in 3 |
Peter Parker // Amazing Spider-Man #208 · mythic | $4.00 | 0.214 | 19.3% | 1 in 5 |
Spider-Man 2099 #216 · rare | $1.98 | 0.503 | 39.5% | 1 in 3 |
Symbiote Spider-Man #217 · rare | $0.85 | 0.503 | 39.5% | 1 in 3 |
Araña, Heart of the Spider #213 · rare | $0.80 | 0.503 | 39.5% | 1 in 3 |
Silk, Web Weaver #215 · rare | $0.54 | 0.503 | 39.5% | 1 in 3 |
Scarlet Spider, Ben Reilly #214 · rare | $0.49 | 0.503 | 39.5% | 1 in 3 |
Radioactive Spider #212 · rare | $0.35 | 0.503 | 39.5% | 1 in 3 |