Anyway, while I currently don't have much to offer, I'll show you some sketches I've been doing to demonstrate the process I take:
A ghost/steel type fake pokemon concept I've been working on. This is Clawmbee, the Live Corpse pokemon.
Sketch of one of the gym leaders (Defense Leader Martha) with her pokemon Boundoom, a Rock/Ghost type Pokemon with Wondergaurd as its ability
If you want to know the etymology for these two fakemon, Clawmbee and it's evolution (which I'll show later) are based of Jiang Shi, while Boundoom is based off a Nurikabe.