Bunny Girl Dilemma

I got all three bunny girls but struggling to decide on a moveset for two of them.

Sharena +Atk -Res: 35 attack and 36 speed put her just behind my Nino so she can certainly go offensive but infantry blades have little use compared to emblem teams as I barley even use Nino these days. I'm thinking of keeping her base kit and making her a support/bait unit with her speed keeping her safe from doubles. B slot either Vantage or a seal skill (if I ever get a spare one) and either Res Tactic or a hone/spur etc. Sound viable?

Catria +Res -Spd: Really bad bane as makes her the slowest of her, L'arachel and Olwen as my possible mounted Blarblade users. Again, I'm thinking keep her base kit with Hone/Fortify Cavalry but I'm not sure on her A slot, Fury is the default but harms her ability to debuff. I do have a second Sharena (-Atk) so she could get Swift Stance to make her safer from doubles and boost her resistance, Warding or Mirror would be better but I don't have them spare. Any thoughts?