Best upside Pokémon sets
Which sets have the biggest ceiling? Every set ranked by upside — the real price of its single most valuable card, divided by the real cost of a booster pack. This is a best-case number, not an average: it tells you the size of the jackpot, not your odds of hitting it.
How upside is calculated
For every set we take the single most valuable real card in it — priced the same way as every card page on CardTrack, from live eBay, TCGplayer, Cardmarket and Fanatics sold data — and divide it by the cheapest real booster-pack listing for that set. A set showing 10,000× means its best possible pull is worth 10,000 times the price of the pack — not that you should expect it. Chase cards are rare by design; see Pack Pull Rates for the actual odds of pulling one, and Open Packs to rip a virtual booster and see what a typical pack actually returns.