Is the Opus X: Ancient Champions booster box worth it?
Average — depends on luck
The booster box costs €105.05 today (Cardmarket trend). 14 cards are worth €5 or more — €218.20 together, 2.08× the box price. The top five cards make up 44% of the whole set’s value.
How cards are priced
Most cards in any set are commons worth cents. Whether a box pays off depends on hitting one of the few top cards.
Most valuable cards in the set
Full set →| # | Card | Set | Price today | 30 days |
|---|---|---|---|---|
| 1 |  Cu Sith 10-068 | Opus X: Ancient Champions | €38.31 | +10% |
| 2 |  Feolthanos 10-098 | Opus X: Ancient Champions | €25.00 | 0% |
| 3 |  Refia 10-128 | Opus X: Ancient Champions | €20.90 | 0% |
| 4 |  Reynn 10-020 | Opus X: Ancient Champions | €20.00 | 0% |
| 5 |  Aria (III) 10-108 | Opus X: Ancient Champions | €20.00 | +21% |
| 6 |  Echo 10-047 | Opus X: Ancient Champions | €18.00 | +4% |
| 7 |  Penelo 10-058 | Opus X: Ancient Champions | €16.50 | 0% |
| 8 |  Sara 10-112 | Opus X: Ancient Champions | €16.17 | +63% |
| 9 |  Balasa 10-003 | Opus X: Ancient Champions | €12.00 | +41% |
| 10 |  Eald'narche 10-024 | Opus X: Ancient Champions | €8.00 | 0% |
| 11 |  Raiden (REVENANT WINGS) 10-100 | Opus X: Ancient Champions | €7.00 | 0% |
| 12 |  Folka 10-120 | Opus X: Ancient Champions | €6.32 | -5% |
| 13 |  Cecil 10-115 | Opus X: Ancient Champions | €5.00 | -23% |
| 14 |  Lann 10-017 | Opus X: Ancient Champions | €5.00 | -35% |
| 15 |  Mog (MOBIUS) 10-083 | Opus X: Ancient Champions | €4.99 | 0% |
| 16 |  Shivan 10-041 | Opus X: Ancient Champions | €4.02 | -64% |
| 17 |  Fran 10-060 | Opus X: Ancient Champions | €3.82 | -19% |
| 18 | Reynn 10-020 | Opus X: Ancient Champions | €3.82 | -26% |
| 19 |  Rorrik 10-021 | Opus X: Ancient Champions | €3.70 | -70% |
| 20 |  Cid (FFBE) 10-052 | Opus X: Ancient Champions | €3.54 | -23% |
Prices: Cardmarket trend, updated daily — as of Oct 30, 2026.
How to read these numbers
The full-set value is what all cards would cost as singles. One box won’t complete the set and the rarest cards are rare, so we focus on cards from €5. If they are worth many times the box price, the set is rich in valuable cards; if value is concentrated in a few cards (high top-5 share), opening is a lottery.
If you want a specific card, buying it as a single is almost always cheaper. A box makes sense if you enjoy opening, play limited/draft or collect sealed product.