So this is Kaiman from Dorohedoro.
The gyoza-stan protagonist is cursed by someone to have a reptilian head and has… a very unique way of trying to determine who is responsible and possibly get his memory back in the process.
A bit too gruesome for me to detail here and the very reason why I didn’t bother reading the mangaor watching the animated adaptation. But I’ve been told if one can tolerate the ick factor, there’s a pretty decent story in the first half… It initially started out as a shōnen but then got moved up to seinen. I guess there’s a limit to how much content one can depict and I wonder if that same fate will befall that magic wars thing… correct me if I'm wrong.
Anyway, that’s all I have to say on it. Enjoy!