What do you think?

It's a pretty unique build. Seems like it could work. Probably not as good as the standard Great Flame + DC + QR but you obviously don't want to go for that.

Light Breath + Hone would still be 43 spd they're both visible buffs and don't stack. I'd suggest swapping out the C-slots for Goads and Wards if you have them. Or swapping Light Breath for Dark Breath if you don't have any other debuffs on the team.

So you're treating her like a typical flier, get in people's face, mess them up, run away? I like what I see so far. I prefer atk smoke to fortress D though.

That’s actually not horrible. Speed looks a tad bit too low to be effective but still a nice build.