@CrimmyYup! The name is more there to describe a state of balance between two concelts than anything else.
Putting the two together isn't a particularly strong representation of balance at all. If you want to stick with the concept of change represented by Death and keep the Avestan thing going, Vāyu ("The reason that I am called vayu (apayate, vanō.vīspå) is that I pursue (attain, conquer) both creations, both that which Spənta Mainyu created and that which Aŋra Mainyu created.") would be a far better choice in Persona. If you don't want something Iranian, Janus could be a good choice too.