The closest I would say is swordmaster! Maaaaaaaybe kinshi knight if we want to stretch the description enough to include Nike even though she's not a kinshi. Or a bird in general. But she sure does fly so!
As for a heart seal I think she would be more likely to be a dark knight! She has a bit of experience with a bow but feels more comfortable with magic as a secondary weapon. Plus it would still let her use her sword if needed.