It is time for the [Meca Ranking] of Seven Knights Re:BIRTH (hereafter SKRB). Thanks to the Demon Slayer collaboration, offensive decks are having quite a moment again. Since the new heroes, Kamado Tanjiro and Agatsuma Zenitsu, are both offensive types, the relevant stats shot up together. Naturally, the pick rates for every single hero took a nosedive, save for the ever-versatile Hayeon. Let us break down how the meta shifted right after the collaboration update, complete with some arena team stats.

Demon Slayer Heroes Elevate Offensive Decks, Upending Yongeon Meta

Ever since the arrival of Korean-style heroes 'Seonran, Yongeon, and Hayeon', the boundary between magical and offensive decks in SKRB has become rather blurry. Despite Seonran and Yongeon possessing opposing types with zero direct positional synergy, they managed to steer the meta anyway. Their sheer raw stats simply brute-forced past any synergy deficit. Throw Hayeon into the mix, and even those lingering weaknesses vanished entirely.

When word broke about the new Demon Slayer characters, the burning question among adventurers was whether they could shatter the current meta. Well, the answer arrived sooner than expected. The fresh faces, Tanjiro and Zenitsu, went on a rampage in offensive parties, securing top-tier pick rates of 48.3% and 47.7% respectively.

The biggest beneficiary of this collaborative chaos turns out to be Seonran. Recovering from the dip caused by Yongeon, Seonran bounced back to a 53.7% pick rate, climbing to third place right behind the ubiquitous flex picks Hayeon and Eileen. Meanwhile, Yongeon, who once sat comfortably atop the arena throne, suffered a brutal 24-percentage-point plunge. Expect Tanjiro and Zenitsu to keep running roughshod until the second wave of collaboration heroes drops.

A Straightforward Choice of Formations and Pets

When it comes to formations, the arena has firmly settled into a binary choice between offensive and defensive setups. Basic and balanced formations are virtually collecting dust, while attack and defense formations split the pie down the middle. In short, players prefer blunt simplicity over convoluted hero arrangements. Attack formations naturally gravitate toward magical decks, while defense formations cater to offensive builds.

Pets tell an even more extreme story. As early initiative becomes paramount, Zeo is out there dominating the field. Racking up an extra 17.4 percentage points compared to last week, Zeo shattered the 84% pick rate ceiling. One might say the blistering performances of our featured best picks, Tanjiro and Zenitsu, only poured rocket fuel into Zeo's popularity.

Upper Arena Defense Team Pick Rate Analysis

※ Upper Arena defense team pick rates were tallied at 10:00 PM on October 6.
※ Data compiles the defense team setups of the top 100 players in the Upper Ranking tab.
※ Current defense team formations may slightly differ from the logged data.

The Upper Arena has pivoted back to the standard season now that the 4v4 mode has wrapped up. Naturally, the Demon Slayer collaboration tore the existing meta to shreds. The aforementioned offensive build is flexing its muscles in the Upper Arena too—featuring Seonran, Hayeon, Tanjiro, and Zenitsu. Toss in Eileen for an extra dose of chaos, and you have a terrifying synergy with Zenitsu’s shock ailments. Some daredevils even swap out Tanjiro for Kris Heron, another offensive deck supporter packing shock utility.

Consequently, the squeezed magical and defensive decks saw their pick rates plummet by 32 and 3 percentage points respectively, though their core setups remain largely unchanged. Word has it that the second batch of Demon Slayer heroes will arrive as magic and universal types. Only then should we expect any genuine structural shifts in team compositions.

Real-time Arena Analysis Lab

The real-time arena has kicked off its brand new season as well. Thanks to the newly introduced ticket system, the early-season landscape among rankers looks drastically different. Unlike the previous season which had zero match limits, players are exercising far more caution with their matchmaking. Since it is still early days with accumulated records thin and match counts restricted, plenty of adventurers share identical scores. While score differentiation at the absolute apex remains somewhat muted, certain rankers have already managed to stand out. Let us take a peek at the Seonran offensive deck run by Name from the Rudy Legion, who has been bouncing between the 2nd and 5th spots.

The overarching strategy for Name's Seonran-led offensive deck remains blissfully straightforward after welcoming the Demon Slayer crew. Unleash a storm of area-of-effect attacks right at the start of battle to strip away all enemy survival skills, then mop up the survivors with precision strikes. The only twist? Zenitsu has stepped in to handle the execution duties previously assigned to Awakened Dellons. Even if an immortal foe manages to shrug off death via effect resistance, Zenitsu keeps them locked down with shock. With a much more reliable finisher on hand, the deck holds a noticeably sharper edge against magical opponents.