Kalista lore ideas

So i just had a little looksie to see if I could figure out something about Kalista. We all know about Azir, and how he is incredibly old. It also says, in his lore, that he was once a mortal man blinded by his own hubris which basically means he was very self centered, meaning he may have been willing to BETRAY someone to serve his own wants and desires. Also, his soldiers use SPEARS that may be thrown at distance enemies......... or maybe a woman running from an angry, selfish emperor?