I find Vayne and Larsa's relationship very interesting and endearing. Even though Vayne was power hungry and apathetic to the woes of the general populace, I really do believe he wanted to pave a way for Larsa to rule in peace. That's his conflict - his own desire for power is opposed/balanced by his desire to see Larsa's hands kept free of blood. And though he succeeded in protecting Larsa's innocence, his own megalomania and ambition got the best of him in the end.

The moment when Larsa draws his sword at Vayne gave me chills...