User blog comment:KaiserLos24/New Shadow Isles Champion- Kalista (Maybe :P)/@comment-5921332-20141023235321/@comment-7709681-20141024010442

To me, all those characters have one thing in common: ''Treason; to further extends, breaking oaths. Base WhyRenektonWhy stated that Kalista is hunting the champions under the fog, and I think the reason is that she literally is (Or has become, if she turns out to be Senna transfigured'') the enbodiment of vengeance, and she's just hunting anyone that dares to break an oath or pact, ala Erinyes / Furies.