battle-scarred vs expert

battle-scarred

adj
  • Having scars or other damage received in battle 

expert

noun
  • A player ranking just below master. 

  • A person with extensive knowledge or ability in a given subject. 

adj
  • Extraordinarily capable or knowledgeable. 

  • Characteristic of an expert. 

How often have the words battle-scarred and expert occurred in a corpus of books? (source: Google Ngram Viewer )