Black Clover has a wide variety of powerful magic users and many different types of magic can be used in unique ways, but Asta and his unique Anti-Magic are an exception, as he channels this power through four different Demon Swords. The power to nullify all forms of magic and undo spells is interesting to see, and only one mage is truly able to use it. Asta, a commoner from Hage Village, can use this spectacular power effortlessly since he doesn’t possess any magical power.

https://screenrant.com/black-clover-asta-four-demon-swords/