With the spoilers for Black Clover chapter 366 out, fans of the manga saw a flashback of Finral taking Asta and Ichika to the Clover Kingdom. Soon after Asta's arrival, he went after Damnatio Kira as he aimed to avenge his friends who got defeated by the Paladin.
The previous chapter saw Secre having to sit out of the fight as her Healing Magic would come undone if she were to be taken down. Thus, she was left to witness her friends get defeated by Damnatio Kira. Upon no longer being able to see her friends face such an ordeal, she called out to Asta for help, which is when he returned to the Clover Kingdom.
Disclaimer: This article contains spoilers from the Black Clover manga.
Black Clover chapter 366 spoilers: Asta slices Damnatio using Zetten

As per the spoilers for Black Clover chapter 366, the upcoming chapter is titled Headliner. The chapter will begin with a flashback of the Hino Country as Yosuga and Ichika arrived to bid their farewell to Asta. As Asta said his goodbyes and thanked the Hino Country people for all their help, Finral appeared through The Door of Fate to pick up Asta.
While Asta seemed happy to see Finral, Shogun Ryuya Ryudo had something more important to ask him. He suggested Finral take Ichika with them since she was one of Hino’s strongest. Ichika initially rejected this idea because she believed her place was with Ryuya.
However, the Black Clover chapter 366 spoilers showed Yosuga Mushogatake assuring Ichika that he would protect the Shogun and the Hino Country. Ryuya added to this and told Ichika to go to the Clover Kingdom and reunite with her older brother, Yami Sukehiro.
“Ichika. Go see Yami!! And ya better come back alive, ya hear?!”
Ichika finally agreed to the idea and joined Asta in going to the Clover Kingdom with Finral. Thus, all three entered the Door of Fate and reached the Clover Kingdom.

Black Clover chapter 366 then showed Asta having arrived at the Clover Kingdom. He was left angry upon seeing his Magic Knight squad mates beaten to such a sorry state. Despite Damnatio’s attempts to intimidate him, Asta felt confident in himself. He asked Finral to focus on medical treatment and declared he would take on the Paladin by himself.
Asta whipped out his Demon Slasher katana, walking toward Damnatio to fight him. Knowing his Scale Magic would be useless against Asta’s Anti-Magic, Damnatio used his Atmospheric Magic to pass judgment on Asta. However, Asta easily canceled it, leaving Damnatio and Finral surprised at his mastery of Anti-Magic.

Asta remarked that Damnatio’s magic was a poor match against his anti-magic. Damnatio tried to overpower Asta with his newfound physical prowess as a Paladin and accused Asta of disrupting Lucius’s peaceful order. Already enraged at the sight of his injured squadmates, Asta criticized his definition of Damnatio’s peace. At the end of Black Clover chapter 366, Asta overpowered Damnatio with a single slash of Zetten.
Final thoughts on Black Clover chapter 366
Black Clover chapter 366 saw Ichika joining Asta to go to the Clover Kingdom. Hence, fans might soon be able to see her interactions with her brother, Yami Sukehiro, and other members of the Black Bulls. As for Damnatio, while Asta slashed the Paladin, fans must wait until the next chapter is released to discover his final fate.
The manga is set to be on a break next week.