tensei shitara slime datta ken is about a human who died a virgin and is reincarnated into a slime monster (he becomes the strongest character)
http://www.mangago.zone/read-manga/murabito_desu_ga_nani_ka/
This is similar?
http://www.mangago.zone/read-manga/rakudai_kishi_no_eiyuutan/
Maybe this:
http://www.mangago.zone/read-manga/to_aru_ossan_no_vrmmo_katsudouki/
The archer was considered an extremely weak class until the MC plays it in this series.
Unless you havent seen it, Index is the epitome of this trope. Toumas fight against accelerator is probably one of the best example of said trope. (๑•ㅂ•)و✧
this is fun!! any other mangas like this with underestimated class that's extremely strong?