It was a manga about some kingdom being oppressed by some lord (medieval setting).
Then the prince, who everyone thought, came back and killed this lord with some ancient magic.
After that, he also kills some bandits with this transformation magic...

There aren't many chapters out, but i've somehow forgotten the title of the manga -_-
If anyone can help i would become happy ^^

p.s. sorry for my bad english

Antimagia

Yes, that's the one.
Thanks a lot 😀