A Polycount user called Linko has recently shared an excellent guide to building Dota 2 assets with the help of Blender.
First, the artist explained the import and export parts. This is a step-by-step guide, so you’ll figure out all the steps in no time. Then you will learn how to test your assets in the game. You will also be given some tips on textures that seem hand-painted (make sure to set up another guide to setting up a hand-painted effect here).
Some other useful links:
The description might give you an idea that the guide is only useful for Dota 2, but the thing is that the post also features a number of general tips on stylized production. Linko concluded the guide with a number of tricks on modeling, stylized hair, cracks, and more.
You can find the guide here.