Union Arena · UE12BT: Kaiju No. 8 · #UE12BT/KJ8-1-075 · Common

Childhood Promise

Name: Childhood Promise
Brand: Union Arena
SKU: 659160
Price: 0.06 USD
Availability: InStock

Market price · Normal · Sep 3, 2026

$0.06

−14.3% this week · −14.3% in 30 days

1 day−14.3%

7 days−14.3%

30 days−14.3%

90 days0.0%

1 year—

All time−57.1%

Where it's cheaper

TCGplayer$0.06

Cardmarket for Union Arena is being connected — a second price appears as soon as this card is matched.

Normal · market price

$0.06$0.09$0.12$0.15

$0.06

Oct 31Feb 10May 23Sep 3

TCGplayer market price · via tcgcsvtcgrate.com

Printings

PrintingMarketLowHigh7d

Normal$0.06$0.01$1.35−14.3%

Card details

Number: UE12BT/KJ8-1-075
Rarity: Common
Trigger: [Draw] Draw a card.
Card type: Event
Series Name: Kaiju No. 8
Description: Choose one character on your field and switch it to active. If the chosen character is "Kafka Hibino", "Kaiju No. 8", or "Mina Ashiro", choose up to one of your AP cards and switch it to active.
Required Energy: 2
Action Point Cost: 1
Activation Energy: Green