Thoughts for a Setsuna refinment weapon

So after Cherche got her refinment weapon with it being a Brave weapon, I have been wanting one for Setsuna because she could really use the extra 4 attack from the prf Brave weapon

Not sure if the Bow in her Art is an actual bow in any of the games but it's a really cool looking bow and not even an actual bow in hero's so it could totally be her refinment weapon

Not sure what kind of eff. the refinment could have for the weapon could be if it does end up being a Brave weapon, but something that would really help her compete with Bridal Cordelia could be L&D3, (little over used on prf refinment's but really helps Brave users) but something like Brazzen Atk/Spd could work just as well, Brash Assault could also work well also against those pesky fast Mages