What Magic Does The Antagonist Use In 'Black Clover: The Knight Of Treachery'?

"I won't let them live!" "I will be the strongest as a demon wielding warrior!" Arya Santanu, an ordinary young farmer from a village in the west of the island of Yawadwipa. He found a pitch-black stone as big as his body in a forbidden forest. Little did he know that the stone was a dimensional prison for a top-level demon named Asura.  Unexpectedly, Arya Santanu made a promise with the demon Asura to avenge all his demon brothers. This brotherhood of demons formed a sect of criminals in the land of Yawadwipa. They are known as the group of Thirteen Black demons.  Arya Santanu's hatred intensified when the Thirteen Black Demons destroyed his village and killed his beloved brother. What was originally a one-sided agreement turned into a grudge.  How can Arya Santanu become the strongest? follow the excitement only in the devil's hand knight.

Sheeran, a 16-year-old boy, lived until he was killed for a stupid reason. ( stupid reason & more in the prologue:v ) But it seems that fate had stored different things for him as after death, His soul transmigrated to another world inside a dead body of a boy with the same name and same facial features as him. He also found out that a mysterious black whirlpool seemed to be inside him and connected to his soul. After the short unfortunate first life, he starts living his second life with more suffering that he chooses himself to get stronger but with that also comes happiness he had never experienced. A smooth sailing second life of Sheeran starts with something mystical inside his body and other benefits of it that could make him stronger with some suffering. However...he didn't know that due to his soul ( That was supposed to return to the source of the universe after death but instead, it transmigrated by someone for some purpose and that caused an adverse effect like increasing misfortune on his soul ) The benefits he receives ultimately becomes the source of his second doom that is even worse than death. But...that's when the future revoked overlord is born.

Gripped in a strange curse that is triggered by the full moon, Blanchet’s lover Neyru has started acting strange. When he disappears without a trail, Blanchet pursues him, finding a link between his disappearance and the wolves attacking her village. In the quest to save him from a dark madness, she is met by another boy, whose charm and quick wits beguile her. She realizes a truth greater than her, the village and everything that she has known so far. Meanwhile, this new boy holds a mystery that she has to solve, one that is necessary to save her lover! And when he shows interest in her, things start to become very difficult for her… Choices are presented, and she has to choose…either abandon her lover, give into the charms of this new knight in shining armor, or save her village and abandon both… what will she choose?

Amanda has been living happily in the village for years. Her ancestor, a Mage that helped the Hero in subjugating the Demon King about 500 years ago, made sure that the village becomes rich and abundant. Along with her friends – Irene, Jessica, and Grace – they promised to spend the next harvest festival together as they did this year. Until Jessica suddenly left with her lover. Amanda found it mysterious. After a year, Amanda was introduced to a noble during the Harvest Festival. It was supposed to be a routine marriage interview until she woke up in a place that she did not recognize. In the mountain beyond the thick forest that surrounds the village, a large castle looms with darkness. Will Amanda find the truth about her situation, or will she find love instead?

Orennox is a wizard who has been around since the world was made. As technology progresses, magic tends to wane and Orennox adapts to the trends. Now called Oren Knox, he is mostly known as a gunfighter, a notoriously cheap gunfighter who will use magic to make one bullet do the work of many so he doesn't have to keep buying ammunition. His quest is to locate the last Earth Nodes, the last strongholds of magic, and harness their power with the goal of bringing back his trapped wife. In order to find these Earth Nodes, he must use the services of the female Diabolists (night witches) who can sense the magic from long distances. Only, Diabolists are extremely rare and there is a psychopathic killer out there who wants them all dead. After losing one Diabolist to fate, Oren must protect his new asset from those who would hunt her down and kill her so he can find enough magic to complete his quest. However, he is not the only wizard left looking for Diabolists, Diabolists have minds of their own, and, according to him, everyone Oren comes in contact with is a sidewinding, low down, scoundrel.

The next day I woke up, I am now the fiance of the Duke of Dubois Castle, or known as Lemon. “I am a demon who lives by desire and greed, you have yielded with the contract that you have exchanged with your life?” “Then what do you want?” “I want the whole of you Veta Le Blanchet, not just your blood, heart and soul, it is the whole of you.” Theroux Claude, the third prince of the kingdom. “Lady Le Blanchet, just how can you stand still this demon duke? If you ever get tired of him, you are always welcome to my palace.” Another troublesome man, my childhood friend when I was at the academy, Durand Gagnon. “I have attained this nickname not just because I follow all his Majesty’s order, but because I want to have a stronghold in the knight position so that I can support you my Lady, remember that my oath is only for you.” Then, what is my cousin thinking that he would say such things? “Sister, I have finally inherited the title of the Baron, please come back to our fief, and I will make sure to bring back the glory of our family!” As I try to relinquish the past, the more troublesome it becomes. Is clinging to the tiny bit of my life a wrong choice? And why is the temple spying on me? “Lady Le Blanchet is the only descendant of the family, you shouldn’t involve yourself farther with the Demon Duke.” “It’s done my Lady, as long as it is you, I can give everything, even if I destroy this Kingdom.” Hold on, just what on earth this demon wants from me?