That Time I Got Reincarnated as a Slime UNION ARENA Card List

Jun 12

Who wants a massive UNION ARENA set? If you’re looking for a set with tons of cards to choose from, lots of decks and strategies, or you’re entirely new to the game, That Time I Got Reincarnated as a Slime could be the set for you!

In this guide, we’ll be diving into each and every card for the set in English. This set has both Vol. 1 and Vol. 2 packaged into one mega set. Plus, with hand-signed, serialized Action Point cards, you can bet this set will fetch a high price on the secondary card market. Competitively strong and top-notch for collectors, That Time I Got Reincarnated as a Slime is the set to get – look for it at your local game shop on June 26, 2026.

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That Time I Got Reincarnated as a Slime complete card list

Parallel Rare/Alt Art cards

Not all of the alt arts from this set have been revealed – they won’t be fully revealed until the official release day. But we have had an early look at several of the most valuable cards from the set.

Serialized, hand-signed Action Point cards

Just like Solo Leveling before it, That Time I Got Reincarnated as a Slime will include two different serialized and hand-signed Action Point cards. While insanely hard to pull (there are usually just about 100 of each serialized card in existence), having both hand-signed AND serialized cards is a huge draw for collectors.

Box Toppers

Since this is a special set that contains both Vol. 1 and Vol. 2 cards, it also has an extra large number of available box toppers you can collect.

In addition to the common box topper foils, you can also get really, really lucky and possibly pull this special Gold foil design.

That Time I Got Reincarnated as a Slime promo cards

Two promo cards have been revealed for this set. One you can get from attending the Release Event (which begins June 12, 2026). The other you’ll have to win at a UNION ARENA store tournament starting in July.