Two inverse (but not mutually exclusive) badges each of which could have representations at bronze/silver/gold levels. Although the descriptions say "for any tag" - the badges themselves would be 1-time (not per tag).
Student Becomes Master:
After receiving X upvotes on Questions in any tag, receive Y upvotes on Answers in that tag
After receiving X upvotes on Answers for any tag, receive Y upvotes on Questions for that tag.