Quick question before I pull out too much hair. Are all enemies encoded? ie if Batman: [Superman] will the input necessarily have Superman: [Batman] or do we have to check for that?

if n is anything other than an integer or integer-formatted string (e.g. '123') that is >=0, throw a TypeError

This does not correctly handle floats.

This is one of those situations where I hated my code but it worked. I knew there would be a my pythonic, cleaner solution. Thanks for showing me. I like that this site lets us learn from more advanced programmers.