How do you trade boss souls in dark souls 3?

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Tags

1. #rotted
2. #process
3. #transposing
4. #speak
5. #greatwood
6. #firelink
7. #souls
8. #weapon
9. #curse
10. #specific
11. #courland
12. #ludleth
13. #order
14. #items
15. #converting
16. #create
17. #spell
18. #which
19. #drops
20. #shrine
21. #transposition