@Rin No, healing spells are allowed. There's no magic like Death, Doom, or revival magic. Ultima, Holy and Meteor are all off limits for plot reasons, and summoners don't exist. As for summons, they are a plot thing as well, but they get introduced almost immediately out the gate. However, there's a requirement that needs to be met to unlock them. After all, they are sentient, though exist in a plane where mortals cannot see them.