Union Arena Rurouni Kenshin vs Attack on Titan booster box: which is worth opening?
Rurouni Kenshin is the better box to open: its cards are worth 95% of its price after selling costs, against 69% for Attack on Titan.
Side by side
| Rurouni Kenshin booster box | Attack on Titan booster box | |
|---|---|---|
| Verdict | Toss-up | Keep it sealed |
| Box price today | $84€75 | $111€99 |
| Cards inside, after selling costs | $80€71 | $77€69 |
| Cards ÷ price | 95% | 69% |
| Boxes that lose money | 73 of 100 boxes | 78 of 100 boxes |
| A typical box (median) | $40€36 | $45€40 |
| 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 | September 26, 2025 | August 29, 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