Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
However, as the series progressed, Nero was revealed to be Secre, the servant of the first Wizard King.
Source: https://gamerant.com/black-clover-characters-used-forbidden-magic/
Secre can also use her sealing spells to recover people, sealing up injuries or even reconnecting limbs.
Source: https://www.cbr.com/black-clover-strongest-black-bull-members-ranked/