Buckle up, this is going to be rough:
FDM printers are not the best choice for printing figurines in the 25 to 40 mm scale that is typical for wargaming and D&D games. Resolution-wise, that's the area of resin printers.
But there are ways to get some partially decent prints made:
you might want a small nozzle. 0.2 is about the smallest you can do ...