A bit of info: trading a base pokemon counts for when you need to evolve it's first evo into it's second evo.
I.e.
To get a machamp, you have to trade a machoke.
You can trade a machop and then evolve it into a machoke, without having to trade your machoke.
Now have machamp/machoke ;o
Seen: 149 (30%)
Caught: 104 (21%)