Union Arena has released two full sets of Sword Art Online Cards, and both rank among the strongest in the game thanks to their standout artwork. Fan-favorite characters like Asuna and Kirito headline the roster with multiple entries each, but this list narrows things down to the best of the best.
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Beyond the artwork, some cards feature seiyu signatures from the original Japanese voice cast, adding serious value for collectors. These autographed pulls turn an already great set into something truly special to chase.
13. Lisbeth 048 (R)

This Rare Parallel carries the signature of Ayahi Takagaki, the seiyu behind Lisbeth’s voice. Takagaki is a well-known name in the anime voice industry, and her autograph adds a personal touch of authenticity to the card. For fans who follow voice actors as closely as characters, this signature is a nice bonus on an already collectible parallel.
12. Silica 043 (R)

Silica’s Rare Parallel features the signature of Rina Hidaka, who lends her voice to the beloved character throughout the series. Hidaka has a strong following of her own, which adds extra appeal for collectors who value voice-actor autographs alongside character art. The signature pairs nicely with the card’s clean, full-bleed alt-art design.
11. Argo 044 (SR)

This Super Rare Parallel is signed by Shiori Izawa, the seiyu who voices “The Rat” herself. Izawa’s autograph gives the card an added layer of authenticity tied directly to the character’s fan-favorite nickname and personality. It’s a solid pull for anyone collecting seiyu-signed cards from the Progressive lineup.
10. Yui 022 (SR)

Yui’s Super Rare Parallel bears the signature of Kanae Itō, whose voice work on the character has made her a fan favorite in her own right. Itō’s autograph adds sentimental value to a card that’s already emotionally significant to many SAO fans. This makes it a meaningful pickup for both gameplay and collector purposes.
9. Eugeo Synthesis Thirty-Two (SR)

This Super Rare Parallel features the signature of Nobunaga Shimazaki, the seiyu who voices Eugeo. Shimazaki is a recognizable name among voice actors, which adds prestige to the autograph on this Integrity Knights card. Collectors of Alicization-era cards often seek this one out specifically for the signature.
8. Leafa – Earth Goddess, Terraria 011 (SR)

Leafa’s Terraria-form Super Rare carries the signature of Ayana Taketatsu, her longtime voice actress. Taketatsu’s autograph complements the vibrant goddess illustration, making this one of the more visually and personally striking signed cards in the set. It’s a popular target for fans who follow Taketatsu’s career closely.
7. Mito 054 (SR)

This Super Rare Parallel is signed by Inori Minase, the seiyu behind Mito in the Aincrad Progressive movies. Minase’s autograph adds collector value on top of the card’s already unique cinematic-style artwork. Fans of Minase’s other roles often seek this card out specifically for her signature.
6. Yuuki 069 (SR)

Yuuki’s “Absolute Sword” Super Rare features the signature of Aoi Yūki, a well-established seiyu with a large fan following. Her autograph adds significant collector appeal to an already popular character card. The signature makes this one of the more in-demand signed pulls in the Red/ALO lineup.
5. Alice Synthesis Thirty 031 (SR)

This Super Rare Parallel carries the signature of Ai Kayano, the voice actress behind Alice. Kayano’s autograph pairs with the card’s detailed golden armor artwork to boost its desirability among collectors. It’s considered one of the more prestigious signed cards in the Green Integrity Knights set.
4. Sinon 091 (SR)

Sinon’s Super Rare Parallel features the signature of Miyuki Sawashiro, a highly regarded seiyu known for numerous major anime roles. Her autograph adds substantial value to a card already praised for its sleek Solus/Hecate artwork. This combination makes it a standout signed pull in the set.
3. Yuna 032 (SR)

This Super Rare Parallel is signed by Risae Matsuda, the voice actress behind Yuna in Ordinal Scale. Matsuda’s autograph complements the card’s musical-themed foil design, tying the signature nicely to the character’s idol-like role. It’s a niche but meaningful pickup for Ordinal Scale fans.
2. Kirito 049 (SR***)

This 3-Star Super Rare carries the signature of Yoshitsugu Matsuoka, the iconic voice of Kirito throughout the franchise. As one of the most recognizable seiyu in anime, Matsuoka’s autograph is a major driver of this card’s value beyond its gold-embossed foil and full-bleed art. It’s considered one of the most sought-after signed pulls in the entire set.
1. Asuna 042 (SR***)

This 3-Star Super Rare bears the signature of Haruka Tomatsu, Asuna’s longtime voice actress and one of the most beloved seiyu in the SAO fandom. Her official stamped gold signature, paired with custom quotes, is a major reason this card holds the top market value in the expansion. For many collectors, Tomatsu’s autograph alone makes this the ultimate grail card of the set.

Union Arena’s Sword Art Online sets deliver striking artwork and solid gameplay across every archetype, making them a standout for fans and collectors alike. The seiyu-signed chase cards, like Asuna and Kirito autographed by their original voice actors, add a rare personal touch that’s hard to find elsewhere. With so many fan-favorite characters represented, there’s something here for nearly every kind of SAO fan. If you love the series, this set is well worth picking up.

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