Is the 古代の咆哮 booster box worth it?
Average — depends on luck
The booster box costs €66.85 today (Cardmarket trend). 8 cards are worth €5 or more — €119.95 together, 1.79× the box price. The top five cards make up 55% 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 |  Roaring Moon ex 090/066 | 古代の咆哮 | €31.26 | -18% |
| 2 |  Golisopod ex 088/066 | 古代の咆哮 | €29.78 | +25% |
| 3 |  Basic Darkness Energy 095/066 | 古代の咆哮 | €13.93 | -14% |
| 4 |  メロコ 092/066 | 古代の咆哮 | €13.60 | -35% |
| 5 |  オーリム博士の気迫 091/066 | 古代の咆哮 | €9.62 | -7% |
| 6 |  Roaring Moon ex 093/066 | 古代の咆哮 | €8.27 | -8% |
| 7 |  Sandy Shocks ex 083/066 | 古代の咆哮 | €7.56 | +154% |
| 8 |  Sandy Shocks ex 089/066 | 古代の咆哮 | €5.93 | -6% |
| 9 |  Morpeko 076/066 | 古代の咆哮 | €4.55 | -57% |
| 10 |  ゴージャスマント 094/066 | 古代の咆哮 | €4.30 | -31% |
| 11 |  Brute Bonnet 077/066 | 古代の咆哮 | €3.88 | +2% |
| 12 |  Magby 068/066 | 古代の咆哮 | €3.79 | -2% |
| 13 |  Scream Tail 071/066 | 古代の咆哮 | €3.36 | 0% |
| 14 |  Crustle 067/066 | 古代の咆哮 | €3.14 | +87% |
| 15 |  メロコ 087/066 | 古代の咆哮 | €2.82 | -11% |
| 16 |  Garbodor 075/066 | 古代の咆哮 | €2.72 | +3% |
| 17 |  Wimpod 069/066 | 古代の咆哮 | €2.68 | +16% |
| 18 |  Loudred 078/066 | 古代の咆哮 | €2.54 | -3% |
| 19 |  オーリム博士の気迫 085/066 | 古代の咆哮 | €2.44 | -35% |
| 20 |  Mienshao 072/066 | 古代の咆哮 | €2.32 | -6% |
Prices: Cardmarket trend, updated daily — as of Oct 29, 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.