As a long-term project (VERY long term, as I'm f2p), I'm building a team out of my Awakening family - Chrom, F!Robin, Brave Lucina, and M!Morgan. I've settled on a Steady Breath-QR-Aether build for Chrom, and Robin is currently rocking the classic TA Raven build, although her final build may involve either Gronnowl or a prf tome should she ever get one. (I'm kind of sitting on her for now while I work on the others.) Chrom and Robin will of course be ally supported, because I am shipping trash.
Morgan and Lucina are harder. They're definitely going to be the more offensive units of the team while Chrom and Robin are more defensive, but beyond that, I want to try to bring out their best in the context of this team and help them work well *together*, and I'm not sure the best way to do that. I realize that Morgan's stat spread is kind of begging for me to hunt down a +spd version of him, give him Raorblade, and turn Lucina into his buffbot, but this is 1) boring, and 2) a complete waste of Lucina's potential. I have three copies of her, including one that's +spd -res, which is pretty much the best luck I've had pulling any 5* exclusive unit, and I am not wasting her as a buffer to a blade mage (especially considering he's the least meta color for mages).
My current thought for Lucina is to ditch Geirskogul, since Chrom's the only one on the team it affects and he doesn't even care about the speed boost. I'd probably give her slaying lance with Fury and Desperation, and Bonfire or Moonbow would be classic specials to go with it...or I could give her Galeforce and the Heavy Blade seal, which is kind of appealing because of how it could synergize with Morgan wielding Grima's Truth. Morgan attacks, simultaneously buffing Lucina while debuffing the enemy, and then Lucina and her Galeforce move in and clean up whoever's left. I have no idea if this would work as well in practice as it does in my head, though, as a Brave Lucina merged +2 with Fury and Slaying Lance would only have 52 atk (54 if I forge for atk), so she'd be fairly dependent on Morgan's buffs and debuffs if she wanted to proc heavy blade consistently. (Also if I go the Heavy Blade route Aether is another possibility to consider.) Another option is a Wrath build since I happen to have the fodder for it, but I've never built a character with Wrath so I'm a little unsure how it would work. I'm happy to hear suggestions.
For Morgan, meanwhile, Grima's Truth is starting to seem like a pretty good option, but I'm still unsure about what else to give him, and there's something that's niggling me about him, and that's his very average res. At 26 neutral res, that's the highest on this team, as Chrom and Lucina's res stats are terrible and Robin's is only really enough to handle blue mages. Morgan is going to have to deal with both green and red ones, and 26 res just strikes me as not quite enough for that. Should I be looking for a res boon Morgan? (It's a superboon, for what it's worth.) Holding out for the introduction of Raorserpent so I can build him into a real mage tank? Just build him to wield Grima's Truth well but give him the DD3 seal in case he needs to tank a mage? Any suggestions regarding Morgan are welcome.
To anyone who actually read this whole thing and is still willing to offer suggestions: thank you so much!