1) Download an Axew.pkm and Buizel.pkm by clicking "Download as a .pkm file".
2)Click here.
3)Upload the .pkm files (one at a time. After you transfer Axew, upload Buizel.pkm).
4)Follow the above link's instructions (AKA change your DNS Address to whatever it says and go into GTS like you normally would)
In case you don't know how to change your DNS, click here for instructions.