What’s your thoughts?

I probably wouldn't bat an eye-lash, to be honest. I don't use Brave Lyn all too much anyway, and when I do use her I'm usually using her with Brave Bow.

Not to mention I have, like, four other units that needs refinements. :l

As far as it being better or worse, it's hard to tell. Cavaliers tend to leave each other behind to do their own thing most of the time (at least when I use them) so if I had to pick, I'd just keep regular Mulagir.

Much better than standard Mulagir since the effect is more useful but worse than Firesweep or Brave Bow.

I personally don't use my Brave Lyn much anymore, however I think it's definitely a good investment for extra versatility if you do use her often.

I use her a fair bit and if I'm honset, I'm unsure if I'd remove it. Removing buffs from ranged units is great (for offense and defense) since I can take a whack from a bladetome unit without the actual power of a bladetome. That, and I'm unsure if we'll get the weapon. Like, Hector got his but he was a seasonal. This Lyn is a LH, so I'm unsure if they'd do that. If they do, I probs won't though, I feel that each character has a niche they can pull off with their weapons (except Seliph) so I tend to keep the og weapons and build around them.

Useful as she is, I actually don't use Brave Lyn that much. I go for a Brave Bow on her, really, but even then, I rarely find myself using her. Maybe because most enemies I face in Arena Assault anymore have very high defense levels, so she can't even harm them.

I kind of feel the same way as most of the other replies on here that it really wouldn't matter that much to me since i don't use B!Lyn that much anyway. That being said if you truly consider the merits of both weapons it really comes down to how you've built your unit and what kind of IVs it has. Anything that already has +Atk or +Spd probably doesn't need the extra kick from Swift Mulagir so original Mulagir still might be the better option. Most of the time she shouldn't be attacking these high Def units anyway since she is beginning to struggle with killing them consistently. The other down side is that Dragons are clearly her main weakness right now and with all the new ones and buffs constantly being released it really doesn't matter which weapon she chooses, if she can't one shot them then she's dead on retaliation.