Do I need to buy Legion before BfA?

Related questions

1. What level can you make a demon hunter?
2. Can you only have one demon hunter per server?
3. What level can you play WoW for free?
4. Does buying WoW come with a free month?
5. Does Battle of Azeroth include Legion?
6. How many demon hunters can I make?
7. How did Illidan become blind?
8. What level can I make a demon hunter?
9. Do you have to buy legion to play Demon Hunter?
10. What is the level cap in World of Warcraft?

Tags

1. #included
2. #legion
3. #legacy
4. #released
5. #content
6. #current
7. #enjoy
8. #client
9. #before
10. #while
11. #meaning
12. #using
13. #expansion
14. #standard
15. #become