Is Demon Slayer: Kimetsu no Yaiba - Release Event Pack worth opening?

Demon Slayer: Kimetsu no Yaiba - Release Event Pack is currently not worth opening on expected value: $2.02 of expected singles per box vs a $4.40 price (0.46×). 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.

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Union Arena

Demon Slayer: Kimetsu no Yaiba - Release Event Pack

Name: Demon Slayer: Kimetsu no Yaiba - Release Event Pack
Brand: Union Arena
SKU: union-arena-ue05bt-demon-slayer-kimetsu-no-yaiba-release-event-cards-demon-slayer-kimetsu-no-yaiba-release-event-pack
Price: 4.40 USD
Availability: InStock

Booster Pack

Current Price

$4.40

7D Change

30D Change

Last updated: May 22, 2026

Browse UE05BT: Demon Slayer: Kimetsu no Yaiba Release Event Cards Cards →

Monthly Price History

Month	Avg	Low	High
Oct 2026	$4.40	$4.40	$4.40
Sep 2026	$4.40	$4.40	$4.40
Aug 2026	$4.40	$4.40	$4.40
Jul 2026	$4.40	$4.40	$4.40
Jun 2026	$4.40	$4.40	$4.40
May 2026	$4.47	$4.40	$4.87
Apr 2026	$4.87	$4.87	$4.87

Value Ratio

vs UE05BT: Demon Slayer: Kimetsu no Yaiba Release Event Cards singles

Expected singles / box

$2.02

Pack price

$4.40

Value ratio

0.46×

vs 30d ago

≈ same

$2.02 of expected singles value vs $4.40 pack price — about the same as 30 days ago. Expected pulls cover 46% of the pack price on average (was 45%).

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

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Frequently Asked Questions

Is Demon Slayer: Kimetsu no Yaiba - Release Event Pack worth opening?: Demon Slayer: Kimetsu no Yaiba - Release Event Pack is currently not worth opening on expected value: $2.02 of expected singles per box vs a $4.40 price (0.46×). 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.