Asta is an orphan raised under the care of a church in Hage after his mommy abandons him on the church’s doorstep. After turning 15 years old, Asta receives a five- leaf clover grimoire with an Anti Magic devil within. He joins the Clover Kingdom’s Black Bull team of the Magic Knights and becomes a 1st Class Senior Magic Knight and temporarily a Royal Knight.
Anti Magic Asta uses this unique energy that can nullify magic. Despite not having the capability to use magic, Asta’s control over his Anti Magic energy, as well as the veritably oneness of this power itself has earned him the rank of an Arcane Stage voodoo.
Union Magic Asta combines his Anti Magic with Novel’s water magic attack like Water Slash and also Gauche’s Mirrors magic attack like Meteorite, Mirrors Slash
Anti Magic Swords: Asta can use swords infused with Anti Magic from his grimoire because he didn’t possess any magic.
Demon-Slayer Sword: Asta’s 1st sword can be enlarged by extending Anti Magic on sword edges of the blade and also can use sword flat surface to reflect all magic.
Demon-Dweller Sword: Asta’s 2nd sword can release slashes of Anti Magic, allowing him to cut through magic and spells from a distance. It can also take other’s magic from the people around him and can used as a combo Slash-Attack
Demon-Destroyer Sword: Asta’s 3rd sword possesses an ability known as Causality Break, which allows it absorb and remove the after effects of magic and spells.It can also negate Reincarnation Magic.
Demon-Slasher Katana: During their fight with Dante, Yami lends Asta his katana, to used his devil possesses arm to make and used his anti magic power to attack on Dante, And its really happen end with cool attack finished him off.
*Note* After six months of hard training in the Heart Kingdom, Asta has gained the ability to call remotely and control the Anti Magic within the sword, used to summon his sword’s back to himself by holding his hand open and calling its name, as well as ride or flying it through the air.
How Asta join Black Bulls
In the Magic Nights entrance exam and Asta failed every single test except for the one when he fights with Sekke Bronzazza with hand to hand combat battle, So when it came time for the captains to vote he got no offers, He almost got no offers but then Tabata stepped in and was like we don’t do that here, So Yami the Black Bulls captain of all the chads stood up and was like I kill you brat right now and Asta was like no you can’t I’m the main character and this is a Showdown and Yami was like you’re right now come join my squad we’ve been needing the main character and that is how he joined.