Depends what you want to do. Do you want to run a single element or multiple. With your kamihime i would recommend running water (Generally considered the best element for f2p) with Sol as a potential if Aphrodite is not enough healing. Then get a damage type, Mord is a good type as she is overall useful but if you want to control the rage meter Sieg is your girl. As you have very supportive kamihime your soul needs to be a damage dealer.