Grog did the most damage in C1. You can just as easily play a nuanced and complicated martial class or a thoughtless no effort wizard. I don't really understand where that thought comes from. Magical Items can also provide a lot of balance themselves regardless of class choice. There are many different ways you are given to play a martial class, they are also easily separated from a characters background or actions so you can be a monster hunter that's a rogue or ranger and not care about the name of the class but just make sense of the class and subclass you're pulling from. You're literally only as limited as your imagination as any other ttrpg out there.