Who deserves the Free Summon ?

Well it might be a little early to decide but if you're don't have someone in mind already then I'm going to highly recommend Lyn since she seems like she'll be the strongest unit in this banner imo. Also she's a colorless unit. Nothing good comes out of colorless orbs.
Ok maybe some but it's mainly full of shit XD

I'm personally going with Bow Lyn, to save myself a trip from Colorless hell. But pretty much go for the unit your lacking in the most your roster, or simply your favorite.

If you have no favourites, and knowing what we know now, go Lyn, Ike, Lucina/Roy.

If you want as many as possible, go Lyn so you don't have to summon colorless units.

Pretty sure everyone is going to say Lyn anyway, but both Lucina and Ike might be just as potentially good depending on stats. Roy is the only ubit that seens skippable (not seeing anything from him that would displace Xander atop the red cavallry pecking order).

Hasn't been a good new red summon for a while, which is annoying as I am out of Hinatas and need to summon reds. :(

Lyn, unless you want to delve into the depth of Colorless hell.

inb4 friendship end with Bridelia, Lyn is my new friend meme

I have 160 orbs saved up. The plan is to roll with those orbs first, then pick the free hero based on the results from my roll.