Updated custom_teambuilder.py

[lcgabaldon]

Removed the Cinderace build for an Excadrill build, and changing Cloyster's and Cincinno's held items from King's Rock, as both King's Rock and Cinderace are banned in Gen 8 OU.

[codecov[bot]]

Codecov Report

Merging #513 (2e77125) into master (f458350) will increase coverage by 0.00%. Report is 11 commits behind head on master. The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #513   +/-   ##
=======================================
  Coverage   83.38%   83.39%           
=======================================
  Files          39       39           
  Lines        3918     3920    +2     
=======================================
+ Hits         3267     3269    +2     
  Misses        651      651           

[hsahovic]

Thanks @lcgabaldon !