I'd like this sort of tag to exist because I like the scenario, but I think "classic fantasy" isn't the right tag name for what we are looking for. I don't like "DQ fantasy", but Yuusha vs Maou" or "hero vs maou" seems more intuitive. I haven't checked if it exists yet, but just having a "hero" tag would help a lot. Combine the "hero" tag with "demon"/"demon girl" tag and most of these works could be found. @aaa1e2r3 I think the tag would allow isekai incidentally if the isekai plot included the hero vs maou scenario.

Agree with DQ Fantasy being a better name. Should this allow Isekai?

Idk man, my vocab is quite limited and it's Just a placeholder really. Also it seems to be a big trope in the fantasy tho, like how slasher film is big in thriller genres and can be considered classic by some. I'll prolly remake this suggestion later on if someone else haven't done it yet

Demon king is classic fantasy?

Rename to [DQ Fantasy]. More accurate. Classic is a bit ambiguous and not culture specific. An alternative is [Yuusha vs Maou], a bit less direct, but captures the context.

Was also thinking "heroes" as the name because the "magical girls" tag, but if so a "demon king" tag might also be needed but it does fall under "demons"... but it can also be a dragon, who knows...