New setSeptember 18, 2026
Attack on Titan came back to Union Arena on September 18, 2026 with UEX07BT, its second booster, drawing on the TV anime's Final Season. The headline for anyone already building the series is a colour: Vol. 2 prints Yellow, which Attack on Titan had never had. Vol. 1 was Blue, Green and Red only, so this is the first set that changes what an Attack on Titan deck can be built from.
A card's colour is the energy your energy line has to be generating before you can play it, which is why colour decides what goes in a deck together rather than just how a card looks. Attack on Titan launched without Yellow: the first booster printed Blue, Green and Red and nothing else. Vol. 2 not only adds Yellow, it leads with it, and Yellow is the most printed colour in the set by a wide margin. Yellow itself is not new to Union Arena, other series have had it since the game started, so what changed here is the series rather than the game. If you have been playing Attack on Titan since Vol. 1, this is the set that gives you a genuinely different deck to build. See the full UEX07BT card list.
Bandai lists the set as 73 card types, split 28 Common, 25 Uncommon, 12 Rare and 8 Super Rare, with 6 Action Point card types on top. Packs are 12 cards at 4.99 USD, a display is 16 packs and a case is 16 displays. As with every Union Arena set, alt art cards are in the product and are not part of that 73, so the checklist you are filling runs longer than the lineup Bandai announces. Each alt art is its own card rather than a shinier copy of one you already own. Compare it with the first Attack on Titan set.
Foil stamped autograph cards carry the anime's cast: Yuki Kaji as Eren Jaeger, Yui Ishikawa as Mikasa Ackermann, Marina Inoue as Armin Arlelt, Hiroshi Kamiya as Levi, Romi Park as Hange Zoë and Ayane Sakura as Gabi Braun. The set also carries illustrations drawn specifically for it, covering those six plus Falco Grice. The cards behind those signatures are the ones worth looking at: the titan form art is where this set puts its best illustration, and each of them runs to an alt art on top of the base card, so the same character can sit on your checklist more than once. Beyond the autographs are the serial numbered, hand signed Action Point cards, which Bandai says are included at what it calls an extremely low pull rate. That phrasing is the publisher's, and no odds are published for any of it.
Each display includes one of eight box topper designs, five foil and three silver foil, so a sealed box always has an extra in it. Each one is catalogued as its own card, so it is a checklist entry in its own right rather than a duplicate of the card it shares art with. The silver foil three are the scarcer half of that split and the ones collectors tend to chase; the foil five are easier to land but sit on the same checklist. Box toppers are one of the reasons a Union Arena checklist grows in ways a pack alone does not explain.
Every card is in the HoloHoard catalogue, shelved under Attack on Titan with the first booster, its starter deck and its release event cards, so you see the whole series in one place rather than as a pile of set codes. Mark off what you pull, print the checklist or export it, and keep an eye on how much of the series you actually have. Re:ZERO arrived the same day if you are looking at both. Browse every Union Arena set.
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