If you mix it with pokemons 80 fakemons is more than enough ! If you don't depends on the size of the region but it is already a pretty good number

80 to 90 fakemon is good enough. Smoosh some other normal pokemon and get around 160 mons total.

I would say minimum of 60 just to get good enough type dispersion, so 80 would likely be just fine

I'm making a pokemon region and I have made about 80 pretty good fakemon but I'm not sure that 80 is enough. Any thoughts?

How many pokemon need to be in a region?