A Theory of Souls
This is a theory made by me so listen along. As you can see on the Kindred login in screen, Kindred is standing on someone. She is dressed very similar to Lucian. My theory is that Kindred and Kalista are both Lucian's wife (Senna). Now right now your probably thinking no way Thresh has Senna's soul. Well lemme explain my theory. It goes way back. According to Plato there are three parts of a soul. The appetites, which are basically human desires/physical comfort. Spirited part of the soul, the part of the soul of which is triggered when an injustice is done, so basically vengeance. And finally the mind, which is its conscious. Now my theory is that Thresh captured two of the three parts of Senna's soul, the mind and spirit. Now as I mentioned the spirit part is obviously Kalista seeking vengeance. And the mind is what's in Thresh's lantern. Senna has basically become 2 more people and has no control over Kalista or Kindred. Kindred is the appetite the part of the soul that wasn't able to be taken by Thresh because it is physical comfort and thresh is unable to take her body with him. And we all Lamb is a female so it increases the odds even more. So once Thresh captured 2 parts of Senna's soul 1 part was left. And since it was left with the body Wolf came across the part of the soul and created Lamb from it. Now going back to Kalista you might look and say she was the wife to the sword-man. Well my theory is that she was kidnapped before she died and later to be killed and seek vengeance on the sword-man. Lucian did not know she was dead until Thresh had her so now he tries to release Senna from Thresh. Remember Kalista has no idea that she is part of Senna and Senna may or may not know. Senna is the conscious and the spirit is no longer connected with the mind. And Lucian is Demacian so its only safe to say Senna was too. And what does Kindred's lore say? "When the final moment comes, it is said a true Demacian will turn to Lamb,". Senna was that true Demacian and the appetite part of her soul became Kindred.
Thanks for reading I had to really think this through because I thought it all could add up.