User blog comment:Nyonne/12 Guardians of the Gods/@comment-27360323-20160120134337/@comment-24974484-20160120135126

Their lores are now out. Yep, all 12 of em. The rest are summed up from the manga, which followed the official lore.

Friendly tip, be active in searching the lores of the legacy units that hasn't been in Global yet.