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  5. UE05BT: Demon Slayer: Kimetsu no Yaiba Release Event Cards
  6. Butterfly Mansion

Union Arena · UE05BT: Demon Slayer: Kimetsu no Yaiba Release Event Cards · #UEPR/KMY-1-028 · Uncommon

Butterfly Mansion

Union Arena card price for Butterfly Mansion: $0.40 market, from $0.24 at the cheapest listing, Normal printing, updated Oct 19, 2026. Full price history since Jan 29, 2025 below.

Market price · Normal · Oct 19, 2026
$0.40
+17.7% this week · +17.7% in 30 days
Buy on eBay →
1 day0.0%
7 days+17.7%
30 days+17.7%
90 days+17.7%
1 year+29.0%
All time−48.7%

Sellers right now

$0.24lowest listing$1.73highest
Market price$0.40
Mid listing$0.40
30-day avg$0.35

Market price is what a near-mint copy actually sold for. The cheapest listing is what a seller asks today — on thin markets the two differ a lot.

Where to buy

TCGplayer$0.40

One year

$0.2452-week low$0.4952-week high
In the range64%
All-time low$0.24
All-time high$0.78
First priceJan 29, 2025
Normal · market price
$0.21$0.42$0.63$0.83
$0.40
Jan 2025Aug 2025Mar 2026Oct 2026
TCGplayer market price · via tcgcsvtcgrate.com

Price story

Butterfly Mansion was released in January 2025. Launch-week prices are left out here: before supply arrives they are mostly guesses. In the last year the price changed +29.0% and ranged from $0.24 to $0.49, and it now trades in the middle of that range. The cheapest listing right now is $0.24, and the 30-day average market price is $0.35.

Printings

PrintingMarketLowHigh7d
Normal$0.40$0.24$1.73+17.7%

The card in play

Card type
Site
Series Name
Demon Slayer
Required Energy
2
Action Point Cost
1
Generated Energy
Y
Activation Energy
Yellow
Card text

[Activate: Main] (Switch to Resting) (Sideline This Card) Add up to two yellow character cards with 3 or less required energy from your sideline to your hand.

Trigger

[Get] Add this card to your hand.

Other printings of Butterfly Mansion

1 more · $0.11 – $0.40
All printings
Butterfly Mansion (UE05BT/KMY-1-028), Demon Slayer: Kimetsu no Yaiba — Union Arena card price +10.0% 7d Butterfly Mansion UE05BT: Demon Slayer: Kimetsu no Yaiba · #UE05BT/KMY-1-028 $0.11

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