The Best UNION ARENA TCG Decks Right Now (2026)
Looking for the best UNION ARENA deck to take with you to your next tournament? I’ve compiled a list of the most meta relevant decks right now, starting with the current best decks in the format.
UNION ARENA typically boasts a surprisingly wide array of competitive decks. It’s one of the things that makes the game so much fun. Recent, high-level competitive events like the LCQ in Vegas, the North America Championship Finals, and the latest regional for the 26-27 Championship season held in Virginia paint a very healthy picture of the current UNION ARENA meta.
We’ll get into all of this and more below as we dive into the top UNION ARENA decks in the game right now.
#1 Yellow Evangelion is the best UNION ARENA deck
4th place by Valdy at the Virginia Regionals ‘26-27
Despite taking a huge hit when it ported over to the English Version, Yellow Evangelion has proven it deserves its place at the top of the meta with many high profile tops as well as an online Regional win under its belt. It’s a very strong, low-energy deck that looks to punish some of the other, more greedy decks out there by swinging hard and fast before they have a chance to set up for an arguably stronger late game.
Meanwhile, Yellow Evangelion has plenty of answers for removal decks, thanks to the four-cost Rei that is an absolute chore to hit with removal effects as it means just letting you recycle your draw producing Rei on impact.
Although I was skeptical at first about how competitive players would take the significant cut this deck got (losing a zero-cost draw-one-sideline-one Asuka), it’s clearly not been an issue at all among the most competitive of UNION ARENA players who have seen significant tournament success with different variations of its build to date.
#2 Red Kagurabachi
6th place by Rapi’s Husband at the Virginia Regionals ‘26-27
It’s really no wonder why Red Kagurabachi is one of the hottest UNION ARENA decks right now. It’s got an insane combination of power, removal, and versatility that makes it feel like one of the former best decks in the game – Red Kenshin – only stronger.
Look no further than at Chihiro himself to get an idea of what makes this deck so strong.
Red Chihiro has Double Attack and 4000 BP removal baked into one card, making it something like a cross between Roy Mustang and Red Kenshin. He’s a bold character with a ton of power that could easily dominate the UNION ARENA English Version if left unchecked. To make matters worse, the deck also has a card akin to the starter deck Red Kenshin that pushes characters to the energy line, making Chihiro a solid counter to Gaius.
With powerful draw, card that mitigate the downside of discarding cards to activate effects, and a powerful Red Color Trigger in the form of Togo Shiba, Red Kagurabachi is going to set the tone for a while at least as one of the most dominant decks in the game.
#3 Purple Solo Leveling
1st Place Regional Champion Virginia Regionals ‘26-27 by Nick
I always love it when I get to say “I told you so,” and in the case of Purple Jinwoo/Cha Mill, I told you so! This deck has so many of the elements of what makes a UNION ARENA deck good that I instantly put it to the top of my Solo Leveling decks list and am on record for saying in my podcast that this is the only deck among the set capable of reaching the S-Rank.
Of course, I may get bragging rights for my meta call, but it’s Nick who won the prize, taking down an Evangelion/Kenshin heavy meta and coming out on top with Solo Leveling! When I ran his deck through my Deck Sensei app, it showed a perfectly optimized deck!
Deck Sensei is your friendly coach – part of the JWA Premium Deck Builder
What exactly makes this deck so strong? For me, it really comes down to the interaction between Cha and Jinwoo, with Cha being the really defining card.
Being able to force a block via an Impact Jinwoo at just five energy while also free-playing a 4000 BP Cha to active is insane. Sure, there’s a lot more going on in this deck, too. But just that is exciting enough to get you to want to try this at your next event.
#4 Purple Gaius
3rd place by Sylviie at the Virginia Regionals ‘26-27
While the Purple Gaius/Spear deck somehow made its way into the English Version unscathed, it wasn’t long before cuts hit it on both sides of the Pacific. While those cuts were enough to dethrone its near tier-zero deck status, they weren’t enough to take it out of the game entirely. Today, it still exists as one of the best decks, although considerably less overpowered than it was before the restriction that cut its key special and the six-cost Asuka from its wheelhouse.
Of course, this deck’s single strongest card and core mechanic rests on the seven-cost Evangelion Spear of Gaius – a character that is unlike anything we’ve seen before in the game.
While there are many powerful combos that can be pulled off with this powerhouse card, the strongest use case is arguably using it to rapidly flood the board with 4000+ BP characters.
Beyond Gaius’s built-in draw engine on the Raid, you have a plethora of other draw characters in this deck like the three-cost Misato, Mari, the AAA Wunder that lets you control your opponent’s board and search out powerful characters When Sidelined.
Purple Gaius is a truly next-gen deck from a next-gen set and you can bet you’ll see it show up at your next high level competition.
Learn more about how to pilot Evangelion’s powerhouse deck via my Purple Gaius deck guide.
#5 Purple Saito
2nd place by Dyne at the Virginia Regionals ‘26-27
For the most part, when UNION ARENA players have been talking about Kenshin needing a ban, they’re usually talking about Red Kenshin, But here’s Purple Saito proving his relevance! There’s nothing particularly spicy about this deck in its build, but it’s still noteworthy for being a deck that many have been overlooking lately in favor of some of the newer toys to play with.
And really, it’s not hard to see why. While Red Kenshin has certain matchups it dominates and others it struggles with, Saito’s matchup spread is more even. Sure, it’s not massively dominant over any of the top tier decks in particular, but it sure isn’t bad into them, either.
This more even matchup spread is helping Saito rise to the top at the highest level of competition – a matchup spread that is made possible thanks to one of the strongest attackers in UNION ARENA: six-cost Saito.
Meanwhile, the six-cost Saito isn’t the only thing this deck has going for it. Indeed, you have a plethora of powerful draw effects, filtering, as well as secondary attackers to choose from, making this deck an absolute blitz of strategic power that can be a challenge for any deck to deal with.
#6 Red Kenshin
8th place by Tony@@@1 at the Virginia Regionals ‘26-27
Many UNION ARENA players felt like Red Kenshin would swiftly dominate after the Gaius ban. However, in my opinion Gaius was largely causing Kenshin to be even stronger than it otherwise would be. Kenshin is extremely strong into Gaius, and without Gaius running around Red Kenshin has to face much more even-to-difficult matchups.
While this deck does focus on the typical, powerhouse aggressive strategies that are a trademark of red, it also has a massively strategic layer to it that makes it one of the higher-skill decks out there.
As a Kenshin player, you must be able to assess the board state beyond making an all-out attack: you need to discern the optimal time to push characters back to the energy line, and when to let them be sidelined.
Another thing going for Red Kenshin is its host of insanely powerful base BP characters. Their only drawback is that when they battle a character that character gets pushed to the energy line instead of sidelined. However, in many matchups, that’s actually a good thing. The beauty of Red Kenshin, however, is giving you the choice to shut that off. And the best way to shut it off is with your 2 AP cost Kenshin. It’s an incredibly versatile deck that is one-of-a-kind in the English version of the game.
Red Kenshin has seen a ton of success since it came out, with its most recent highlight taking first place at the first ever NA Finals! And just in case you thought it’s time at the top of the pack was over – think again! Additional support will soon be making its way to this deck as it finally gets reunited with the fake zero-cost that was cut from it when the set came stateside!
After months and months of Kenshin being one of the top UNION ARENA meta decks, I think it’s safe to say this powerhouse simply isn’t going anywhere.
These are the strongest decks in the game right now you should know about, but stay tuned as I will keep updating this list with even more strategies you can use to compete at your next UA store tournament as more sets enter the arena!
