Talk:The Face Behind the Glass/@comment-2602:306:3681:A760:FD8C:6B80:2C99:B7D4-20190524053820/@comment-27794543-20190525032526

Ontari killed all the Nightblood novitiates after Lexa's death. After Ontari died, Luna became the sole known Nightblood. The Final Conclave included 13 champions, of which only Luna was a Nightblood.

In season 5, Octavia wasn't called 'Commander' or 'Heda', instead the titles used were Osleya (Champion) and Blodreina (Red Queen - a direct reference to her blood color). Octavia never took the Flame because she couldn't because she lacked Nightblood (and thus not considered a true Commander by Flamekeepers like Gaia).