Preferably with a serious tone? The reason I specify "relatively new" is because I likely already have seen or been recommended the older Anime that fit this category (Claymore, Berserk, Vampire Hunter D, Ninja Scroll, Basilisk, Record of Lodoss War).

I just want some good old fashion sword fighting with monsters/demons. No shitty moeshit pink haired girl protagonist. No shitty "twist" school setting starring some beta looking teenager. No "meta Fantasy" land like Sword Art Online.

Just something like Berserk. Castlevania is pretty much exactly what I was after but i've already seen it