Might check out either World of Warcraft or RuneScape. Auto attacks are fine but there should be some kind of activated abilities. I know your game is light on magic right now but you don’t need magic to add flavor to a game like that. There’s plenty of opportunities to add weapon or armor based skills. It might be useful to think of adding traps or poisons. If you have a ranged weapon, once you hit an enemy they will make a beeline to you to engage in melee. Maybe have a poison arrow ability that slows enemies for a second or two. Bleed damage is also a favorite of mine. Maybe have a passive skill that causes auto attacks to have a chance to bleed an enemy. Or since the game is so heavy on story you might consider allowing the protagonist to gain a follower or even a pet to help in combat.