Union Arena Demon Slayer: Kimetsu no Yaiba booster display$291today

Is a Demon Slayer: Kimetsu no Yaiba booster display worth opening?

Union Arena. 16 packs of 12 cards. Released 24 January 2025. Prices from 15 October 2026.

TCGplayer today

$291.27

Lowest listing
$375
Per pack
$18.20

Keep it sealed$77 of cards inside, after selling costs

Estimated contents: nobody has published measured pull rates for this box yet, so we use those of boxes with the same pack layout. Treat the numbers as a rough guide.

See the mathPrice history

Why we'd keep it sealed

The cards inside are worth $77 after selling costs. The box costs $291.

On average you lose $214 per box. Buying the singles you want is cheaper.

Pull rates are still uncertain. The real value could be anywhere from $43 to $166.

If you opened 100 boxes

  • 6 make money
  • 94 lose money

A typical box is worth $32. 1 in 10 boxes is worth $264 or more, and 1 in 10 is worth $14 or less.

The math, per box

From the price of every card to what you'd actually keep.

Per box of 16 packs

Box price on TCGplayer
$291
Cards inside, at market prices
$121
Selling costs and bulk
−$44
Cards inside, after selling costs
$77
Compared with the box price
−$214

From 100,000 simulated boxes. Selling costs: 13% fee, $0.30 per card sold, cards under $1.00 go to bulk at $0.01.

Cards inside, at market prices
The average value of everything in a box, with each card at its price on TCGplayer today.
Selling costs and bulk
TCGplayer's fee and postage for every card worth selling. Cheap cards go to bulk for a few cents.
Cards inside, after selling costs
What an average box puts in your pocket once everything is sold.
Compared with the box price
Plus means the average box is worth more than it costs. Minus means it's worth less.

What the box costs

Today's price on TCGplayer, and how the box price and the cards inside have moved.

TCGplayer today
$291.27$18.20 per pack
Lowest listing
$375
  • Box price on TCGplayer
  • Cards inside, after selling costs
Box price and the cards inside, day by dayFrom 14 Oct to 15 Oct, the box price went from $291 to $291, and the cards inside, after selling costs, from $77 to $77.$0$100$200$300$400Box$291Cards$7714 Oct15 Oct14 Oct: box $291, cards $7715 Oct: box $291, cards $77Box price and the cards inside, day by dayFrom 14 Oct to 15 Oct, the box price went from $291 to $291, and the cards inside, after selling costs, from $77 to $77.$0$100$200$300$400Box$291Cards$7714 Oct15 Oct14 Oct: box $291, cards $7715 Oct: box $291, cards $77
On days when the cards line sits above the box line, an average box was worth more than it cost. Selling costs use our defaults.
Show as a table
DayBox priceCards inside, after costs
15 October 2026$291.27$77.37
14 October 2026$291.27$77.37

What 100,000 simulated boxes were worth

Every box is different. This is how the value of each simulated box came out, after selling costs.

Value of 100,000 simulated boxes94 of every 100 simulated boxes were worth less than the box price of $291.Box price $291Lose moneyMake money0102030$100$200$300$400Boxes out of 100$1 to $11: 5 of 100 boxes$11 to $21: 23 of 100 boxes$21 to $31: 21 of 100 boxes$31 to $41: 15 of 100 boxes$41 to $51: 9 of 100 boxes$51 to $61: 4 of 100 boxes$61 to $71: 2 of 100 boxes$71 to $81: 1 in 127 boxes$81 to $91: 1 in 357 boxes$91 to $101: 1 in 1,000 boxes$101 to $111: 1 in 3,125 boxes$111 to $121: 1 in 10,000 boxes$121 to $131: 1 in 50,000 boxes$131 to $141: 0 of 100 boxes$141 to $151: 0 of 100 boxes$151 to $161: 1 in 513 boxes$161 to $171: 1 in 109 boxes$171 to $181: 1 in 138 boxes$181 to $191: 1 in 193 boxes$191 to $201: 1 in 344 boxes$201 to $211: 1 in 114 boxes$211 to $221: 2 of 100 boxes$221 to $231: 1 in 78 boxes$231 to $241: 1 in 110 boxes$241 to $251: 1 in 201 boxes$251 to $261: 1 in 183 boxes$261 to $271: 2 of 100 boxes$271 to $281: 2 of 100 boxes$281 to $291: 1 in 87 boxes$291 to $301: 1 in 148 boxes$301 to $311: 1 in 313 boxes$311 to $321: 1 in 613 boxes$321 to $331: 1 in 199 boxes$331 to $341: 1 in 105 boxes$341 to $351: 1 in 166 boxes$351 to $361: 1 in 197 boxes$361 to $371: 1 in 344 boxes$371 to $381: 1 in 602 boxes$381 to $391: 1 in 1,299 boxes$391 to $401: 1 in 2,857 boxes$401 or more: 2 of 100 boxesValue of 100,000 simulated boxes94 of every 100 simulated boxes were worth less than the box price of $291.Box price $291Lose moneyMake money0102030$200$400Boxes out of 100$1 to $11: 5 of 100 boxes$11 to $21: 23 of 100 boxes$21 to $31: 21 of 100 boxes$31 to $41: 15 of 100 boxes$41 to $51: 9 of 100 boxes$51 to $61: 4 of 100 boxes$61 to $71: 2 of 100 boxes$71 to $81: 1 in 127 boxes$81 to $91: 1 in 357 boxes$91 to $101: 1 in 1,000 boxes$101 to $111: 1 in 3,125 boxes$111 to $121: 1 in 10,000 boxes$121 to $131: 1 in 50,000 boxes$131 to $141: 0 of 100 boxes$141 to $151: 0 of 100 boxes$151 to $161: 1 in 513 boxes$161 to $171: 1 in 109 boxes$171 to $181: 1 in 138 boxes$181 to $191: 1 in 193 boxes$191 to $201: 1 in 344 boxes$201 to $211: 1 in 114 boxes$211 to $221: 2 of 100 boxes$221 to $231: 1 in 78 boxes$231 to $241: 1 in 110 boxes$241 to $251: 1 in 201 boxes$251 to $261: 1 in 183 boxes$261 to $271: 2 of 100 boxes$271 to $281: 2 of 100 boxes$281 to $291: 1 in 87 boxes$291 to $301: 1 in 148 boxes$301 to $311: 1 in 313 boxes$311 to $321: 1 in 613 boxes$321 to $331: 1 in 199 boxes$331 to $341: 1 in 105 boxes$341 to $351: 1 in 166 boxes$351 to $361: 1 in 197 boxes$361 to $371: 1 in 344 boxes$371 to $381: 1 in 602 boxes$381 to $391: 1 in 1,299 boxes$391 to $401: 1 in 2,857 boxes$401 or more: 2 of 100 boxes
Each bar covers $10 of box value. Bars right of the line are boxes worth at least what you paid.
Show as a table
Box valueBoxes out of 100Result
$1 to $115 of 100Lose money
$11 to $2123 of 100Lose money
$21 to $3121 of 100Lose money
$31 to $4115 of 100Lose money
$41 to $519 of 100Lose money
$51 to $614 of 100Lose money
$61 to $712 of 100Lose money
$71 to $811 in 127Lose money
$81 to $911 in 357Lose money
$91 to $1011 in 1,000Lose money
$101 to $1111 in 3,125Lose money
$111 to $1211 in 10,000Lose money
$121 to $1311 in 50,000Lose money
$131 to $1410 of 100Lose money
$141 to $1510 of 100Lose money
$151 to $1611 in 513Lose money
$161 to $1711 in 109Lose money
$171 to $1811 in 138Lose money
$181 to $1911 in 193Lose money
$191 to $2011 in 344Lose money
$201 to $2111 in 114Lose money
$211 to $2212 of 100Lose money
$221 to $2311 in 78Lose money
$231 to $2411 in 110Lose money
$241 to $2511 in 201Lose money
$251 to $2611 in 183Lose money
$261 to $2712 of 100Lose money
$271 to $2812 of 100Lose money
$281 to $2911 in 87Lose money
$291 to $3011 in 148Make money
$301 to $3111 in 313Make money
$311 to $3211 in 613Make money
$321 to $3311 in 199Make money
$331 to $3411 in 105Make money
$341 to $3511 in 166Make money
$351 to $3611 in 197Make money
$361 to $3711 in 344Make money
$371 to $3811 in 602Make money
$381 to $3911 in 1,299Make money
$391 to $4011 in 2,857Make money
$401 or more2 of 100Make money

Where the value comes from

The average box, split by card type. Most of the value often sits in cards you'll rarely see.

Card typeHow many per boxAverage card after selling costsAdds to the box
Alt-art parallel (★ / ★★)1.1 per box1.1 per box$57.41$60
Super Rare6.0 per box6.0 per box$2.21$13
Common / Uncommon176 per box176 per box$0.02$3.47
Rare8.9 per box8.9 per box$0.04$0.34
Total$77

Chance of a big pull

How often a box has at least one of the rarest cards.

Show as a table
Card typeBoxes with at least oneOn averageBoxes for one specific card
Alt-art parallel (★ / ★★)Star-marked alternate-art versions of the set's cards, about one per box.66 of 1001.1 per box29

If card prices fall

Prices often drop in the weeks after a set comes out. This is the same box with cheaper cards and the same box price.

Card pricesCards inside, after costsCompared with the boxBoxes that lose moneyVerdict
Today's prices$77−$21494 of 100Keep it sealed
25% lower$57−$23598 of 100Keep it sealed
50% lower$38−$253more than 99 of 100 boxesKeep it sealed
75% lower$18−$273100 of 100Keep it sealed

Pull rates we used

Where each number comes from, and how sure we are. Sources checked on 14 October 2026. This box's own pull rates haven't been measured, so these come from boxes with the same pack layout, with extra uncertainty added.

Card typeHow oftenLikely rangeBased on
Common slots, 11 per pack
Common / Uncommon176 per boxPack layout
Rare-or-better slots, 1 per pack
Alt-art parallel (★ / ★★)1.1 per box1 in 2.2 boxes to 2.4 per boxEstimate, TCGTalk, Inuyasha (UE23BT) Union Arena guide: pull rates from 3 English boxes (48 packs)
Super Rare6.0 per box3.6 to 10.0 per boxEstimate, TCGTalk, Inuyasha (UE23BT) Union Arena guide: pull rates from 3 English boxes (48 packs)
Rare8.9 per boxThe rest of the slot

Most valuable cards

The 30 most valuable cards in the set, and what you'd keep after selling one.

CardCard typeTCGplayer priceAfter selling costs
Tanjiro Kamado (008) (SR**)Alt-art parallel (★ / ★★)$364.60$316.90
Zenitsu Agatsuma (071) (SR**)Alt-art parallel (★ / ★★)$292.35$254.04
Inosuke Hashibira (079) (SR**)Alt-art parallel (★ / ★★)$287.20$249.56
Nezuko Kamado (011) (SR**)Alt-art parallel (★ / ★★)$227.75$197.84
Tengen Uzui (087) (SR**)Alt-art parallel (★ / ★★)$227.41$197.55
Muzan Kibutsuji (035) (SR**)Alt-art parallel (★ / ★★)$173.02$150.23
Mitsuri Kanroji (020) (SR*)Alt-art parallel (★ / ★★)$30.40$26.15
Kyojuro Rengoku (090) (SR*)Alt-art parallel (★ / ★★)$27.77$23.86
Daki (059) (SR*)Alt-art parallel (★ / ★★)$27.63$23.74
Kyojuro Rengoku (011) (R*)Alt-art parallel (★ / ★★)$26.96$23.16
Shinobu Kocho (021) (R*)Alt-art parallel (★ / ★★)$25.98$22.30
Mitsuri Kanroji (004) (C*)Alt-art parallel (★ / ★★)$25.22$21.64
Tanjiro Kamado (001) (R*)Alt-art parallel (★ / ★★)$24.05$20.62
Akaza (052) (SR*)Alt-art parallel (★ / ★★)$22.97$19.68
Nezuko Kamado (002) (R*)Alt-art parallel (★ / ★★)$22.69$19.44
Inosuke Hashibira (078) (R*)Alt-art parallel (★ / ★★)$21.01$17.98
Giyu Tomioka (008) (SR*)Alt-art parallel (★ / ★★)$17.21$14.67
Shinobu Kocho (005) (U*)Alt-art parallel (★ / ★★)$16.90$14.40
Tengen Uzui (010) (U*)Alt-art parallel (★ / ★★)$15.63$13.30
Obanai Iguro (003) (C*)Alt-art parallel (★ / ★★)$13.98$11.86
Enmu (045) (R*)Alt-art parallel (★ / ★★)$12.62$10.68
Giyu Tomioka (025) (R*)Alt-art parallel (★ / ★★)$12.52$10.59
Gyomei Himejima (009) (U*)Alt-art parallel (★ / ★★)$12.20$10.31
Sanemi Shinazugawa (006) (R*)Alt-art parallel (★ / ★★)$11.38$9.60
Total Concentration Breathing (029) (U*)Alt-art parallel (★ / ★★)$10.65$8.97
Muichiro Tokito (007) (U*)Alt-art parallel (★ / ★★)$10.35$8.70
Muichiro Tokito (024) (SR*)Alt-art parallel (★ / ★★)$9.32$7.81
Zenitsu Agatsuma (070) (R*)Alt-art parallel (★ / ★★)$9.30$7.79
Gyutaro (056) (SR*)Alt-art parallel (★ / ★★)$7.30$6.05
Nezuko Kamado (011)Super Rare$5.99$4.91

How we work this out

We price every card at its TCGplayer market value, take off the selling costs above, and open 100,000 virtual boxes slot by slot using the pull rates in the table. The verdict compares the cards with the box price and checks how often a box loses money.

Read the full method