debuff vs go to seed

debuff

verb
  • To make a character or unit weaker. 

noun
  • An effect that makes a game character weaker; a negative status effect. 

go to seed

verb
  • To deteriorate; to decline into an unkempt or debased condition. 

  • To pass from flowering or ripening to the formation of seeds. 

How often have the words debuff and go to seed occurred in a corpus of books? (source: Google Ngram Viewer )