I guess Flora could work for that, but to me she seems like a way more expensive Tethys that can’t Dance and is very vulnerable to doubles.
I feel like Tethys with Temari and Disarm Trap would serve a very similar role and give much more flexibility in how your carry can move.
You should also be very, VERY aware of Panic Tower placement when running all those visible buffs. One strike of Panic and Thrasir’s gonna swoop in and you can kiss your tank good-bye. So you’ll have to figure out a way to either avoid or destroy the Panic Tower, which is another reason why I’d prefer Tethys: she gives more movement to get around that problem.
Personally I think Flora is far stronger on AR-D, although she really wants Sturdy Impact for the role.