Adding details to low poly model for 3d printing I am trying to add details to a model in order to 3d print it. The model itself is a WoW character, but the problem is the low poly count and the lack of details for the armor.
Please, keep in mind that I have very little experience using blender and modeling.

Asking in other forums, people suggested retopology, but I only found tutorials of using retopology to reduce details of models, not the other way around.
Hi,
if you need more details, you will have to add more vertices. You can reach it by several ways. 

Globally via mesh modifiers(you can find it in context menu, which is defaultly on right side): Subdivision(Don't forget to use "Simple" option) or Multiresolution.

For specific parts: Edit mode -> Select vertices/lines/faces -> Right click -> Subdivide - You can also change some parameters(smoothness, number of cuts, ...)

There's also dyntopo - it's tool for sculpting, but it can cause unwanted results for 3d printing.

Don't forget some too detailed parts would be better to separate to more prints.

I hope this is that what you needed to know.