Is the メガシンフォニア booster box worth it?
A lottery — value in a few cards
The booster box costs €52.87 today (Cardmarket trend). 6 cards are worth €5 or more — €445.51 together, 8.43× the box price. The top five cards make up 90% 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 |  Mega Gardevoir ex 092/063 | メガシンフォニア | €295.47 | +3% |
| 2 |  Mega Gardevoir ex 087/063 | メガシンフォニア | €71.57 | -16% |
| 3 |  Mega Latias ex 088/063 | メガシンフォニア | €29.64 | -13% |
| 4 |  Mega Kangaskhan ex 089/063 | メガシンフォニア | €22.28 | -18% |
| 5 |  アセロラのいたずら 090/063 | メガシンフォニア | €18.01 | -4% |
| 6 |  ミツルの思いやり 091/063 | メガシンフォニア | €8.54 | -3% |
| 7 |  Alakazam 071/063 | メガシンフォニア | €4.74 | +17% |
| 8 |  Ninjask 065/063 | メガシンフォニア | €3.51 | +111% |
| 9 |  Mega Gardevoir ex 078/063 | メガシンフォニア | €3.22 | -11% |
| 10 |  アセロラのいたずら 084/063 | メガシンフォニア | €2.71 | -3% |
| 11 |  Mega Latias ex 079/063 | メガシンフォニア | €2.54 | -9% |
| 12 |  Mega Kangaskhan ex 080/063 | メガシンフォニア | €2.28 | +5% |
| 13 |  Shuckle 064/063 | メガシンフォニア | €1.78 | +1% |
| 14 |  Stufful 075/063 | メガシンフォニア | €1.73 | -10% |
| 15 |  Mega Manectric ex 077/063 | メガシンフォニア | €1.68 | -3% |
| 16 |  Clawitzer 068/063 | メガシンフォニア | €1.58 | +9% |
| 17 |  Helioptile 070/063 | メガシンフォニア | €1.52 | -31% |
| 18 |  Inteleon 069/063 | メガシンフォニア | €1.49 | +18% |
| 19 |  Shedinja 072/063 | メガシンフォニア | €1.48 | -6% |
| 20 |  Delibird 074/063 | メガシンフォニア | €1.35 | -9% |
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.