Celica's Ascended outfit from Fire Emblem Heroes. It's a combination of the Princess class outfit and elements of Alm's design, such as parts of his belt and leg armour.

I'm still not entirely sure what this represents for her character development, but her Forging Bonds conversation seemed pretty interesting from what I read, in regards to her relation with Mila and the influence of gods in the FE universe.

Thank you very much once again to AwakeningCelicaAmirite for commissioning this skin.