Union Arena UE12BT: Kaiju No. 8 – prices and most valuable cards
UE12BT: Kaiju No. 8 is a Union Arena set released on October 31, 2025. Our database lists 120 cards (set code: UE12BT).
Key facts
| Game | Union Arena |
|---|---|
| Release | October 31, 2025 |
| Code | UE12BT |
| Card count | 120 |
Most valuable UE12BT: Kaiju No. 8 cards
| # | Card | No. | Rarity | Variant | Price |
|---|---|---|---|---|---|
| 1 | Kikoru Shinomiya (020) (SR**) | UE12BT/KJ8-1-020 | Super Rare 2-Star | Foil | $187 |
| 2 | Kaiju No. 8 (055) (SR**) | UE12BT/KJ8-1-055 | Super Rare 2-Star | Foil | $182 |
| 3 | Mina Ashiro (005) (SR**) | UE12BT/KJ8-1-005 | Super Rare 2-Star | Foil | $155 |
| 4 | Reno Ichikawa (012) (SR**) | UE12BT/KJ8-1-012 | Super Rare 2-Star | Foil | $139 |
| 5 | Soshiro Hoshina (071) (SR**) | UE12BT/KJ8-1-071 | Super Rare 2-Star | Foil | $119 |
| 6 | Kafka Hibino (063) (SR**) | UE12BT/KJ8-1-063 | Super Rare 2-Star | Foil | $119 |
| 7 | Action Point Card (AP05) | UE12BT/KJ8-1-AP05 | Action Point | Foil | $69.83 |
| 8 | Action Point Card (AP03) | UE12BT/KJ8-1-AP03 | Action Point | Foil | $50.92 |
| 9 | Action Point Card (AP02) | UE12BT/KJ8-1-AP02 | Action Point | Foil | $50.51 |
| 10 | Action Point Card (AP01) | UE12BT/KJ8-1-AP01 | Action Point | Foil | $38.95 |
TCGplayer market prices (US market) as of October 29, 2026 — for each card, its most expensive variant (e.g. holo, 1st Edition). Prices change daily and depend on condition — check the current price of a specific card and version in RipWorth.
Rarities in this set
| Rarity | Cards |
|---|---|
| Common | 35 |
| Uncommon | 28 |
| Rare | 12 |
| Action Point | 11 |
| Super Rare | 10 |
| Super Rare 1-Star | 8 |
| Super Rare 2-Star | 6 |
| Rare 1-Star | 6 |
| Super Rare 3-Star | 2 |
| Uncommon 1-Star | 2 |
FAQ
How many cards are in UE12BT: Kaiju No. 8?
RipWorth’s database lists 120 numbered cards in UE12BT: Kaiju No. 8 (sealed products excluded).
When was UE12BT: Kaiju No. 8 released?
UE12BT: Kaiju No. 8 was released on October 31, 2025.
What is the most valuable card in UE12BT: Kaiju No. 8?
Based on TCGplayer market prices as of October 29, 2026, the most valuable card is Kikoru Shinomiya (020) (SR**) (UE12BT/KJ8-1-020, Super Rare 2-Star) at about $187. Prices change daily.
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