Asta is known for possessing anti-magic powers which can nullify any form of magic. But, It is his four demon swords that help him use this power.

Unexpectedly, Asta trusts him with the demon dweller sword, using the last bit of energy to share his powers with Yuno. Chapter 380 ends in an epic double spread of Yuno dual-wielding his Spirit ...

The sword belonged to his soul father, and with Asta’s trust, he may have gotten a temporary power-up. However, the only explanation behind Yuno being able to use Anti-Magic is the special ...