Set completion has an optimal order, and most people do it backwards.
The order that costs least
- 1.Bulk commons and uncommons first, in a single lot. Buying these individually is where the money leaks — postage on a 40p card costs more than the card.
- 2.Then the mid-tier rares, watching for sellers clearing multiples at once.
- 3.Then the chase cards, last, and patiently. These are where the price swings are, and where waiting genuinely pays.
Doing it in reverse means paying peak prices for the chase cards while still having a hundred commons to source one at a time.
Know exactly what you are missing
The hard part is not buying — it is knowing precisely which cards remain, at which numbers, so you can buy a bundle that fills gaps rather than duplicating.
- Log what you own and each set shows a completion ring: owned versus total, including the secret rares that push a set past its printed number.
- Finish a Set lists every card you are still missing, cheapest first, with a running total — so you can see what finishing actually costs before committing.
- Missing lists can be printed as binder placeholders to take to a show or a shop.
A word on printed totals
A set that says 102/102 often contains more than 102 cards. Secret rares are numbered beyond the printed total, and whether they "count" is a matter of taste. Our completion rings count the full set including secret rares, so the denominator matches what a complete binder actually needs. Browse any set list free, without an account.