Brave Lyn inquiry

I would say that you should keep her and pop them both on def. +atk/-spd is still good because she stays at 35 spd with mulagir, which means that she can double less but hit harder. neutral allows for a few more doubles. if ur building for usefullness id say neutral is the better option. on frailer units spd is usually the better stat. i wouldnt recommend merging them though. keeping them both is better imo. plus if u merge them ull either get one more hp or a random stat for neutral and one more hp or one more atk for the +atk/-spd

Hmm, depends on how you want to build her. If you want to keep her on Mulagir, then I would recommend keeping the +Atk, -Spd as Mulagir's effect will make up for her bane, keeping her at a nice 35 speed. However, if you want to take the Brave Bow+/Life and Death 3 route, then keep the neutral Brave Lyn. Although +Atk is great on her, she needs to keep a neutral or +Spd IV if she wants to be able to attack four times. I have a neutral Brave Lyn on this build, and most of the time the extra attacks make up for her not having a +Atk IV.

You could consider running the +atk/-spd Lyn with the Klein Build of DB3 and Brave. Then she'd KO most units on the first 2 strikes, and possibly quad slow tanks and finish them off (with Cavalry Buffs), leaving only moderately fast and tanky units alive, like Blucina and Nephenee, if she doesn't prock Luna.