Bandai UNION ARENA Uma Musume Pretty Derby [UA59BT] Japanese Booster Box

Description

Description

Bring Uma Musume Pretty Derby to UNION ARENA with Booster Pack [UA59BT], the first Japanese booster release for the series from Bandai.

The set features a broad lineup of popular Uma Musume characters, including Special Week, Silence Suzuka, Tokai Teio, Oguri Cap, Gold Ship, Vodka, Daiwa Scarlet, Mejiro McQueen, Symboli Rudolf, Rice Shower and more.

A major collector highlight is the extensive lineup of foil-stamped reproduced cast-signature cards, with 22 characters represented across the set. These are reproduced foil-stamped signatures and are not individually hand-signed cards.

UA59BT also includes 12 newly illustrated cards featuring Uma Musume characters in special UNION ARENA-themed outfits, along with parallel card treatments and Action Point cards.

Each sealed Japanese booster box contains 16 packs, with 8 Japanese-language cards randomly enclosed in each pack.

Details

Product Name : UNION ARENA Booster Pack Uma Musume Pretty Derby

Japanese Product Name : UNION ARENA ブースターパック ウマ娘 プリティーダービー【UA59BT】

Set Code : UA59BT

Type : Trading Card Game Booster Box

Format : UNION ARENA

Manufacturer : Bandai

Series : Uma Musume Pretty Derby

Edition : Japanese Edition

Packs Per Box : 16

Cards Per Pack : 8

Standard Card Types : 100

Action Point Card Types : 13

Release Date : December 11, 2026

Rarity Breakdown

SR (Super Rare): 12 types

R (Rare): 18 types

U (Uncommon): 35 types

C (Common): 35 types

AP (Action Point): 13 types

Parallel versions are included in addition to the standard card lineup.

Features

First Japanese UNION ARENA booster for Uma Musume Pretty Derby

Includes 100 standard card types across SR, R, U and C rarities

Includes 13 Action Point card types

Features 22 foil-stamped reproduced cast-signature card designs

Includes 12 newly illustrated Uma Musume cards

Newly illustrated characters wear special UNION ARENA-themed outfits

Includes parallel card treatments

Features ultra-rare serial-numbered AP chase cards

16 booster packs per sealed Japanese box

8 Japanese-language cards per pack

Foil-Stamped Cast Signature Cards

UA59BT includes foil-stamped reproduced signature cards for 22 Uma Musume characters:

Special Week

Silence Suzuka

Tokai Teio

Oguri Cap

Gold Ship

Vodka

Daiwa Scarlet

Grass Wonder

Mejiro McQueen

El Condor Pasa

Narita Brian

Symboli Rudolf

Air Groove

Seiun Sky

Tamamo Cross

Mihono Bourbon

Rice Shower

Agnes Tachyon

Super Creek

Haru Urara

King Halo

Tanino Gimlet

These cards use reproduced foil-stamped signatures and should not be described as individually hand-signed cards.

Newly Illustrated UNION ARENA Outfit Cards

Bandai has confirmed 12 newly illustrated cards featuring Uma Musume characters in special UNION ARENA-themed outfits:

Special Week

Silence Suzuka

Tokai Teio

Oguri Cap

Gold Ship

Vodka

Daiwa Scarlet

Mejiro McQueen

Symboli Rudolf

Mihono Bourbon

Rice Shower

Haru Urara

These original illustrations are one of the main collector highlights of UA59BT and distinguish the set from a standard character-card expansion.

Ultra-Rare Serial-Numbered AP Cards

A very small number of booster packs may contain serial-numbered limited Action Point cards featuring planned handwritten cast signatures.

These cards are produced in extremely limited quantities and appear at very low pull rates. They are not guaranteed in any individual pack or booster box, and inclusion in future reprints has not been confirmed.

Connection to the UA59ST Starter Deck

UA59BT launches alongside the Uma Musume Pretty Derby Starter Deck [UA59ST].

The Starter Deck provides a ready-to-play 50-card deck and includes an exclusive Promotion R Pack, while UA59BT expands the title with a larger card pool, additional characters, parallel treatments and premium signature cards.

Some cards in the Starter Deck also use different artwork from their UA59BT versions, giving collectors another reason to combine both products.