The Best UNION ARENA TCG Decks Right Now (2025)
Looking for the best UNION ARENA deck to take with you to your next store tournament and get your favorite winner card? I’ve compiled a list of the most meta relevant decks right now, starting with the current best decks in the format.
UNION ARENA currently boasts a surprisingly wide array of competitive decks given how new the game is. And while there are many playable decks, the very top of the format is largely being dominated by three decks in particular: Purple Code Geass, Blue Sukuna, and Yellow One Punch Man.
However, with the release of Sword Art Online, several new decks are entering the fray and are likely to have a significant impact on the meta.
We’ll get into all of these decks and more below in the current UNION ARENA meta rundown.
#1 Code Geass Purple
1st place Egman tournament by Shawn Brophy
When I first got my hands on Code Geass Purple I was blown away by its potential. This deck’s strongest card is the powerful Guren Mk-II which forces your opponent to block while also granting Impact. That combined with a plethora of powerful BP reduction cards and you have arguably the strongest deck in the format.
Not only is Code Geass a powerhouse, it’s got a strong matchup spread and ways to deal with just about every deck.
Going up against a Lancelot? No problem – drop that BP by 1000 via Gawain or two-cost Lelouch. Need to clear your opponent’s board? No problem: Raid a Guren and force them to block. Really the only drawback of this deck is the fact that you can easily exhaust your energy line if you aren’t careful because of how many five-cost raids you have and the fact that your Special is a two AP cost in hand.
With that being said, Code Geass Purple is a fun, powerful deck that has the tools it needs to stay meta relevant for a long time to come.
Read my guide to Code Geass Purple for more info on this deck.
#2 Blue Sukuna with Nanami
1st place Bandai Card Game Fest tournament by Robin SwaN
Blue Sukuna was a pretty hyped deck even before it came out with the official JJK release, bringing with it a fun new mechanic into the UNION ARENA TCG meta, one that is focused on hunting for specific cards (Sukuna’s Finger) and getting said cards into the sideline. However, it’s morphed over time into an even stronger version of itself – one that uses Nanami to great effect.
As a non Blue Sukuna player, I have to say this is the one deck I fear facing the most. It’s just so good and it only gets stronger as the game progresses. The inclusion of Nanami and the Ratio special is a brilliant choice as Nanami frustrates and slows down your opponent while threatening huge moves if your deck hits that 15 or less number that grants him both Impact and Damage 2. Meanwhile, the Ratio Special is arguably the best one in the game as it denies decks like Purple Bleach fuel to their sideline.
This deck is the one I see most commonly played at store tournaments, and you are likely to either play it or play against it wherever you go in the UA world.
For more info on how to pilot the formidable Blue Sukuna deck, read my guide.
#3 Yellow Saitama
Corey Encinas – 2nd Place Egman Quad SAO Box Tournament
One Punch Man is a unique set in the UNION ARENA lineup as it is the first set to get a simultaneous release between the English version and Japan. Although most of the decks in that set revolve around the 1.5/2 tiers, Yellow Saitama feels like something in a league of its own.
Saitama is the first character to enter the game with over 5000 BP. Additionally, he can’t be removed from abilities, which means you can’t get rid of him with your specials from your hand or even from life.
Saitama
As if that weren’t enough, he’s a powerful attacker in his own right with the potential of reaching Impact 1 and Damage 2 in the same card, assuming you are able to discard a Saitama from your hand.
Yellow Saitama’s impact will be felt throughout the entire UNION ARENA meta, This deck has the tools it needs to dominate the meta, and will undoubtedly cause many of the other top tier decks to adjust their game to compensate.
Learn how to build and play the Yellow Saitama One Punch man deck.
#4 Green GGO
GGO is one of the best Sword Art Online decks in UNION ARENA, and highly effective in the current meta thanks to delivering powerful Snipe/Impact combos for relatively low energy. People just love high power, high energy green decks and this GGO deck will be quite in the SAO format.
Snipe isn’t something we’ve had to deal with much in the format lately with Kurapika seeing far less play than in the early days of the game. However, this deck’s strongest character, Sinon, gains snipe and a powerful card search ability when played. At only six energy she’s more palatable – kind of like Lancelot’s six-cost KMF which does most of the heavy-lifting for that deck.
Sinon
Sinon is far from the only powerhouse tool at your disposal in this deck, however. You also have the seven-cost Kirito who acts as your Swiss Army Knife, dealing crazy damage and boosting BP to unlock powerful combos. Also, don’t forget the four-cost Yuuki character who can defend and hold the line with her powerful 4000 BP and nulify Impact.
GGO is a very fun deck to play and will undoubtedly show up at many store tournaments during the SAO UA meta.
Learn how to build and play this powerful GGO deck via the guide.
#5 BLEACH Purple
2nd place at the Bandai Card Games Fest tournament by Christopher Juarez Frajio
BLEACH Purple has been a UA staple since the beginning, and it’s still doing well at tournaments, even managing to take second place at the big Bandai Card Fest tournament. It’s not hard to see why this deck remains popular with players. It’s arguably the most well rounded deck, boasting consistency, power, and a deck filled with characters mostly under five-cost.
If you haven’t played BLEACH Purple yet and are looking to build it, the starter deck is a great pick as it has many of the cards you need to build the complete set. It’s well worth picking up two of these starter decks and then getting the singles for what doesn’t come in the starter decks, like this deck’s strongest card: five-cost Ichigo Kurosaki.
Ichigo Kurosaki (041)
Using his “when played” effect you can sideline virtually anything you face, as long as you have the right amount of cards in your sideline to remove. As if that weren’t enough, you have the powerful Renji backing you up – a character with added removal plus the Damage 2 keyword outside the raid box, making him lethal raided or not.
All of that being said, BLEACH has been dropping out of popularity lately thanks largely to the rising dominance of Yellow Saitama. As mentioned above, that build is anti-removal, making a pure removal deck like BLEACH a bad matchup to deal with the strongest hero who ever lived.. While having a bad matchup against one deck isn’t a huge deal, it is a big deal when that one deck also happens to be one of the most popular around.
If we see less Saitama around in the coming weeks and months, you could also see more BLEACH Purple winning tournaments.
Learn how to play this BLEACH Purple deck via my guide.
#6 Code Geass Green Lancelot
I’ve played a lot of Lancelot and it’s certainly a deck that’s quite strong – when it works. If you manage to hit your curve, this deck is absolutely deadly and capable of decimating your life in a few turns like none other.
While the Air Cavalry Lancelot is the card that catches your eye the quickest, it’s actually the six-cost Lancelot raid that is this deck’s most reliable card. It’s very easy to hit six energy in a deck so focused on energy generation, and the six-cost Lancelot is an absolute beast complete with Damage two and a “when played effect” that bolsters its BP for an entire turn.
That being said, eight-cost Lancelot is your closer and if you can manage to get two of these onto the field, it’s highly probable you’ll just flat out win. It’s arguably the strongest card in the game right now with a powerful removal effect, damage 2 and Impact, meaning no matter what happens in the battle you’re taking some life.
Learn how to build and play this Lancelot deck via Jeremy’s guide.
#7 SAO Yellow Goddesses
9th Place Joshua Ravo - Yellow Demon Slayer Tanjiro – Egman Event’s 5X Demon Slayer Win-A-Box
Last but certainly not least is the powerful new Asuna Goddess deck form SAO. This deck truly is unlike anything we’ve seen to date, with a pretty incredible combination of gameplay mechanics that are as unprecedented in the English version of the game as they are powerful.
At its core, Goddesses focuses on using strong effects that use up your own life cards to get you down to four life. Once there, you can then unlock even more powerful effects to decimate your opponent.
Your strongest card is the Asuna Goddess character.
Asuna (Stacia, the Goddess of Creation)
Asuna is deceptively good if you’ve played her with four life or less. Assuming that’s the case, you can swap one character on your front line with one on your energy line, switch them to resting, and prevent them from moving the following turn – an insane combination of effects that essentially takes the moved character out of the game for two turns.
Beyond Asuna, Landscape Manipulation is a powerful tech against the current meta letting you get around the likes of Saitama and Malevolent shrine, while Goddess Sinon is one of the strongest late game closers in the game.
These are the strongest decks in the game right now you should know about, but stay tuned as I will be updating this list with even more strategies you can use to compete at your next UA store tournament!
