Well... I have 3 Brave Lyns. My main one is no boons no banes, the other 2 are completely crap IV's. (+Def -Res and +HP -Res). Is it worth it to merge then on the neutral one to have a +2 Neutral Brave Lyn, should I use them to feed skills to other characters? I'm trying to make a Horse Emblem team (SM Eirika, Reinhardt, Brave Lyn and Groom Marth (this one may change if I get a good one). SM Eirika is +Spd -Res and Reinhardt is +Atk -Spd)
I'd actually recommend not to merge as of the moment, swift sparrow and attack smoke are pretty rare skills and it's not everyday you get a brave lyn, I've had around 4 at some point, but I chose not to merge, since I'm sure +1 to hp atk res spd isn't really worth it if you can slap swift sparrow on a firesweep or a quad strike build. But that's just how I see it anyway.
To be fair, I am relatively new at game (2-3 months) and I don't have many really built heroes. Reinhardt was a lucky new aquisition, but I don't have any firesweep hero (as in, no one built). That's kinda what I want to know, if the extra stats were worth it on an not even optimal Brave Lyn, or the skills could be used on some more worthwhile heroes (She is amazing, but doesn't fit most of my teams xcept that cavalry emblem)
+Spd is favored for firesweep bow builds cause you will really need to double against dragons. +Atk is good for Brave Bow+ builds, tho +Spd is also usable if you rather stamp her with an Atk seal. I would use the +Atk one, but, you can use either as long as you use the opposite seal (+Atk, use speed seal, +Spd use attack seal)
Pokemon GO
Fire Emblem Heroes
Fate Grand Order
Dragonball Legends
Dragalia Lost
IV Calc
Heroes