Union Arena Sword Art Online vs ONE PUNCH MAN booster box: which is worth opening?
Neither is worth opening at today's prices, but Sword Art Online comes closer: its cards are worth 66% of its price after selling costs, against 39% for ONE PUNCH MAN.
Side by side
| Sword Art Online booster box | ONE PUNCH MAN booster box | |
|---|---|---|
| Verdict | Keep it sealed | Keep it sealed |
| Box price today | $158€141 | $160€143 |
| Cards inside, after selling costs | $104€93 | $62€55 |
| Cards ÷ price | 66% | 39% |
| Boxes that lose money | 77 of 100 boxes | 86 of 100 boxes |
| A typical box (median) | $35€31 | $27€24 |
| Rarest pull | Alt-art parallel (★ / ★★): 66 of 100 boxes | Alt-art parallel (★ / ★★): 66 of 100 boxes |
| Packs | 16 packs of 12 cards | 16 packs of 12 cards |
| Released | May 2, 2025 | March 7, 2025 |
The two boxes
How we work this out
Both boxes are worked out the same way: today's card prices, selling costs taken off, and simulated boxes to see how often one loses money. Read the full method