Shigaraki’s Decay (My Hero Academia)
Shigaraki’s Decay in My Hero Academia is a terrifyingly potent Quirk that caused his itchiness and gave him an obsessive drive to destroy everything. He can cause the disintegration of any object he touches.
Everything from a little spot to a city and its population falls under this category. Shigaraki’s Quirk doomed him to a life of isolation and villainy, despite his early aspirations to be a hero. Despite his early dreams, he was never intended to save the day.
Muzan Kibutsuji’s Blood (Demon Slayer)
The majority of the demons in Demon Slayer possess frightening and unpleasant abilities, such as Enmu’s sleep-killing ability or Gyutaro’s fatal poison. The Demon King, Muzan Kibutsuji, possesses the deepest power of all, however, the capacity to transform any human being into a demon.
This is ominous since a single blow from Muzan can destroy a person’s life and strip them of their humanity forever. Plenty of individuals come to Muzan to be transformed into a demon on purpose, but Muzan once turned a guy into a monster with a single scratch in Tokyo, destroying the man’s family with chilling ease.
Killua’s Heart Harvesting (Hunter X Hunter)
Killua in Hunter X Hunter was born into a clan of killers. That he excels at primitive forms of combat is hardly shocking. His heart harvesting is shocking nonetheless.
Killua has the ability to remotely take out someone else’s heart with a twitch of his knuckles, all before the victim realizes what has happened. In general, Killua dislikes having to resort to violence. But if his companions are in jeopardy or if the enemy can’t be stopped with his other Nen skills, he will use it without hesitation.
Angel Devil’s Life-Shortening Touch (Chainsaw Man)
The Angel Devil’s touch can cause premature death in Chainsaw Man. Touching someone, even briefly, can shorten their life by years. It was believed that Aki’s life was shortened by two months due to her hasty hold on Angel’s hand.
The Angel Devil may create weapons out of stolen lives. The people whose lives he has cut short haunt his dreams, preventing him from using it too often.