Spd is everything

All I want is a simple +Spd -Hp A.F.Corrin
Now imagine Warding Breath is actually Darting Breath (I know it's not necessary with this build but hey) she effectively will have 62 (66 at +10 (68 w/SS) Spd on even turn's and on enemy phase giving her the ability to double pretty much anything

Ignis would probably be a little better over Bonfire since she will trigger Ignis every match for roughly 30 flat damage over 19 at +10