Is Union Arena Event Pack Vol. 5 - Demon Slayer: Kimetsu no Yaiba worth opening?

Union Arena Event Pack Vol. 5 - Demon Slayer: Kimetsu no Yaiba is currently worth opening on expected value: $11.07 of expected singles per box vs a $6.99 price (1.58×). It is worse to open than 30 days ago. Expected value is a model estimate from set-wide Inkwell Fair Values and typical pull rates — individual boxes vary.

How is the sealed product price tracked?

We track sealed product prices daily and blend them into an Inkwell Fair Value. The chart shows historical price movement over time.

What does the value ratio mean?

The value ratio compares what you can expect to pull from the product (or, for products without a pack model, the total value of the set's singles) to the product's price. Above 1.0× means the expected singles are worth more than the price.

How often are sealed prices updated?

Sealed product prices and the value ratio update daily as part of our automated price pipeline.

📦

Union Arena

Union Arena Event Pack Vol. 5 - Demon Slayer: Kimetsu no Yaiba

Name: Union Arena Event Pack Vol. 5 - Demon Slayer: Kimetsu no Yaiba
Brand: Union Arena
SKU: union-arena-union-arena-promotion-cards-union-arena-event-pack-vol-5-demon-slayer-kimetsu-no-yaiba
Price: 6.99 USD
Availability: InStock

Booster Pack

Current Price

$6.99

7D Change

30D Change

Last updated: Jun 11, 2026

Browse Union Arena Promotion Cards Cards →

Monthly Price History

Month	Avg	Low	High
Oct 2026	$6.99	$6.99	$6.99
Sep 2026	$6.99	$6.99	$6.99
Aug 2026	$6.99	$6.99	$6.99
Jul 2026	$6.99	$6.99	$6.99
Jun 2026	$6.99	$6.99	$6.99
May 2026	$6.99	$6.99	$6.99
Apr 2026	$6.99	$6.99	$6.99

Value Ratio

vs Union Arena Promotion Cards singles

Expected singles / box

$11.07

Pack price

$6.99

Value ratio

1.58×

vs 30d ago

▼ worse

$11.07 of expected singles value vs $6.99 pack price — worse to open than 30 days ago. Expected pulls are worth 1.58× the pack price on average (was 1.72×).

Expected singles value is a model estimate from set-wide Inkwell Fair Values and typical pull rates — actual boxes vary. Not a guarantee.

More from this Set

Union Arena Event Pack Vol. 7

$16.62

Union Arena Event Pack Vol. 5 - GODDESS OF VICTORY: NIKKE

$9.68

Union Arena Judge Pack 7

$6.50

Union Arena Judge Pack 6

$5.24

Union Arena Event Pack Vol. 3

$3.75

Union Arena Event Pack Vol. 4

$3.32

Top Cards from this Set

Chihiro Rokuhira (Regionals 26-27)

$2,250.00

Action Point Card (AP06) (25-26 Finals)

$1,100.00

Cha Hae-in (Regionals 26-27)

$1,000.00

Himiko Toga (Regionals 26-27)

$899.00

Evangelion Test Type-01 (Spear of Gaius) (Regionals 26-27)

$766.67

Taro Sakamoto (Regionals 26-27)

$718.75

View all Union Arena Promotion Cards cards →

More Union Arena Sealed Products

Demon Slayer: Kimetsu no Yaiba - Booster Box Case

$3,500.00

SOLO LEVELING - Booster Box Case (First Edition)

$3,099.32

CHAINSAW MAN - Booster Box Case

$2,792.85

SOLO LEVELING - Booster Box Case

$2,759.47

Inuyasha - Booster Box Case

$2,328.42

Demon Slayer: Kimetsu no Yaiba Vol.2 - Booster Box Case

$2,223.71

Browse all Union Arena sealed products →

Frequently Asked Questions

Is Union Arena Event Pack Vol. 5 - Demon Slayer: Kimetsu no Yaiba worth opening?: Union Arena Event Pack Vol. 5 - Demon Slayer: Kimetsu no Yaiba is currently worth opening on expected value: $11.07 of expected singles per box vs a $6.99 price (1.58×). It is worse to open than 30 days ago. Expected value is a model estimate from set-wide Inkwell Fair Values and typical pull rates — individual boxes vary.
How is the sealed product price tracked?: We track sealed product prices daily and blend them into an Inkwell Fair Value. The chart shows historical price movement over time.
What does the value ratio mean?: The value ratio compares what you can expect to pull from the product (or, for products without a pack model, the total value of the set's singles) to the product's price. Above 1.0× means the expected singles are worth more than the price.
How often are sealed prices updated?: Sealed product prices and the value ratio update daily as part of our automated price pipeline.