Lilina - Fire Emblem: Heroes
Yes, unfortunately I only knew Lilina from Heroes. But it was her Heroes design that drew me in initially, and I used her in-game in my main team until I stopped playing! I'll go back to Binding Blade one day I swear D:
I was away for a period of time before I first wore her to a con, so the dress was mostly made in a very small room with no mirror. Surprised it turned out this nice, all things considered.