Daily sync · 5,480 cards indexed

Union Arena TCG Database

Union Arena card database with 5,480 cards across 84 sets. Search every card from every anime title, build a deck, or study tournament decklists.

5,480Cards indexed
84Sets tracked
1517Decklists
// Latest drop

New booster

All sets
Live Released Sep 18, 2026

UE24BT: Re:ZERO -Starting Life in Another World-

The newest Re:ZERO -Starting Life in Another World- booster. 8 highlighted cards from the latest Bandai release, Super Rares first.

Browse UE24BT
// Schedule

Release timeline

UE24BT
Re:ZERO -Starting Life in Another World-
Sep 18, 2026
Released
UE24ST
Re:ZERO -Starting Life in Another World- Starter Deck
Sep 18, 2026
Released
UEX07BT
Attack on Titan Vol. 2
Sep 18, 2026
Released
UE10DC
Bleach: Thousand Year Blood War Advanced Deck
Nov 6, 2026
Live now
UEX08BT
BLEACH: Thousand-Year Blood War Vol.3
Nov 13, 2026
Live now
UE25BT
My Hero Academia Special Booster
Dec 11, 2026
Live now
UE26BT
GURREN LAGANN
Jan 22, 2027
Announced
UE27ST
Umamusume: Pretty Derby Starter Deck
Feb 5, 2027
Announced
UE27BT
Umamusume: Pretty Derby
Feb 12, 2027
Announced
// Tournament meta

Top decks this week

All decklists
// What's here

Modules

// Knowledge base

Frequently asked

What is Union Arena?

Union Arena is a two-player trading card game by Bandai built around anime titles. Every booster covers one series (Bleach, Chainsaw Man, Jujutsu Kaisen, Re:Zero, Evangelion and many more), and each deck is built from a single title. The English version is supported by Bandai's official Championship circuit with store events and Regionals.

What are the Union Arena deck building rules?

A deck is exactly 50 cards, all from one title: the three letters after the slash in the card number (for UE24BT/REZ-1-001 that's REZ). You can run up to 4 copies of the same card number, and at most 4 cards each with the Special, Color and Final triggers. The 3 Action Point (AP) cards sit outside the 50-card deck. The deck builder checks all of this for you.

What do Energy, AP and BP mean on a card?

Energy is the energy a card needs on your energy line before you can play it, and the colored icons show which color. AP is the Action Point cost to play it. BP (Battle Points) is a character's strength in battle. Many characters also generate energy once they're on your energy line, shown as Generates on this site.

What are triggers?

Some cards have a trigger effect that activates when the card is revealed from your Life Area. The trigger types are Get, Draw, Active, Raid, Special, Color and Final. Only Special, Color and Final are limited to 4 cards each per deck.

What's the latest Union Arena set?

The newest booster in the database is UE24BT: Re:ZERO -Starting Life in Another World- (UE24BT). Upcoming sets appear on the release timeline above as soon as TCGplayer lists them.

Where do the decklists come from?

Tournament results are collected daily from exburst.dev (store events, online weeklies and Regionals) and egmanevents.com (Regional top cuts). 1517 decklists are on the decklists page, each with the full 50-card list and a link to open it in the deck builder.

Where can I buy Union Arena singles?

Singles and sealed product are on TCGplayer. Card pages and the deck builder on this site link to TCGplayer, and buying through those links supports the site at no extra cost to you.