Is the Advent of the Demon King booster box worth it?
Cheaper to buy singles
The booster box costs €37.10 today (Cardmarket trend). 0 cards are worth €5 or more — €0.00 together, 0.00× the box price. The top five cards make up 43% 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 |  Reiya, Fourth Daughter of the Mikage // Reiya, Fourth Daughter of the Mikage | Advent of the Demon King | €4.51 | -32% |
| 2 |  Welser, the Archmage // Welser, King of Demons | Advent of the Demon King | €4.43 | -82% |
| 3 |  Taegrus Pearlshine // Taegrus Pearlshine, Lord of the Mountain | Advent of the Demon King | €2.71 | +75% |
| 4 |  Gill // Gill, the Gifted Conjurer | Advent of the Demon King | €2.57 | -1% |
| 5 |  Frayla, Servant of Demon Fire | Advent of the Demon King | €2.12 | +2% |
| 6 |  Jeanne d'Arc, Mad Maiden | Advent of the Demon King | €1.62 | -36% |
| 7 |  [Variant] Crier Mermaid | Advent of the Demon King | €1.26 | +48% |
| 8 |  Possession Stone | Advent of the Demon King | €0.78 | +24% |
| 9 |  [Variant] Tower Guardian | Advent of the Demon King | €0.76 | -11% |
| 10 |  Faith in the Darkness | Advent of the Demon King | €0.67 | -26% |
| 11 |  [Variant] White Dragonoid Child | Advent of the Demon King | €0.66 | -53% |
| 12 |  Elixir, the Majin | Advent of the Demon King | €0.63 | +34% |
| 13 |  Rose Quartz, the Panda Queen | Advent of the Demon King | €0.57 | +46% |
| 14 |  Otherworld Dreams | Advent of the Demon King | €0.55 | +28% |
| 15 |  Majin Dark Elf | Advent of the Demon King | €0.47 | -6% |
| 16 |  Elixir's Fighting Spirit | Advent of the Demon King | €0.44 | +16% |
| 17 |  [Variant] Ferocious Triceratops | Advent of the Demon King | €0.37 | -63% |
| 18 |  Ra, the Golden Bird | Advent of the Demon King | €0.36 | -35% |
| 19 |  Duplication Mirror | Advent of the Demon King | €0.34 | +36% |
| 20 |  Ryula, the Dragon Priestess | Advent of the Demon King | €0.33 | +22% |
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.