Help an indecisive summonner

1. Looks like you have plenty of Chroms and little to no interest in him, so since you plan to use a Silas and B!Ike might as well just get use a 3* Chrom if able.

3. Probably Renewal since she really wants to keep her HP up.

1. I would say Raven? It sounds to me like you will promote/merge/use him last, though I may be wrong. Figure out what order you prioritize them in and use the lowest priority hero to fodder, I'd say.

2. Not really, they both would like more offensive B slot skills. Chill Def from Walhart is awesome on Cherche, or Hit and Run on budget, and for Rein I'd say either Chill Res, WoM, Pass, or even Desperation, if you pair it with the Brash Assault seal.

3. Reposition on flyers is generally reccommended. That way you can make other units hop over mountains and other shenanigans. For her B skill, if running Blarblade then Desperation, if using her normal tome then I'd say Renewal, as that would help keep her HP high if she gets into any combat, and thus keeping her tome's effect active.

4. I'd take a speed bane, actually, since Veronica will nearly always double you. If that's not available, and you are only using her for a Veronica counter, instead of also as a B!Lyn counter, I'd prefer a defense bane. But still, if you can get a -Spd version that's what I'd recommend, unless really buffing up her speed.

Those are my thoughts, do with them as you will.

2. I personally like the idea of QR2 as a budget skill on Cherche very much since she's not exactly fast without investment but has pretty good defense (enough where she has the potential to be optimized as an enemy phase unit if need be). Add DB3 on top of QR2 and you've got a decent mixed-phase unit. I have a 4*+10 Cherche and the DB3 + QR2 combo has worked perfectly well.

Cecilia I actually suggest -spd for a 4* merge. Keeping HP is useful, and -def is definitely not advised because you might want to bait a brave bow.

On Aversa go for some breaker.

QR2 is maybe decent on Cherche because she has so much HP; I don't think Reinhardt survives doubles to QR back unless you switch to a tank build.

For inheriting SB+aether, take your pick between Raven and Catria. I would probably go for Raven unless you're hoarding feathers and considering a 5* merge. Greens are easier to replace than blues, and luna can go to a unit that actually wants to use it

1. If you ever plan to take on High Tier Arena then you'd want to hold on to those Chroms (and Cordelias). I'd probably go with Fredy's for Luna or if you're desperate then Ravaen, but he's good for scoring. The green pool is smaller so you have a higher chance of getting them over, Chrom and Catria.

2. I'd give Cherche QR but not Rein. He can be rather frail. Threaten Atk 3 is good if you're running Heavy Blade on Cherche but Hawkeye is better Growing Light & DB2 fodder imo. If you don't care that much for AoE then you could just fodder a 3 Star Hawkeye for Rising Light (to try it out), Threaten Atk 1 & 2 then a 4* for DB 1, DB2 & Threaten Atk 3.

3. As mentioned, Renewal to maintain HP for debuffing. Reposition is best for fliers but Draw back is also fine.

4. I regret all my 4*+10s (except Raigh). Cecilia might get a refine someday too. She's quite tanky with TA Raven tome so -HP is better imo. Brave Lyn has gotten rare but better safe than sorry.

Hope this helps!

Raven/Catria. Don't sweat it, they are reasonably common units. So maybe keep the one that you would consider merging (if only to save time). Value-wise, I like Luna better than Sol. Armored blow is not essential in any build I run, and Titania also has it (another common unit).

Suggestion. Consider Hit and Run for Cherche. All my offensive fliers have it as their main B skill. Kill -> Get out -> Repo/Dance. Very versatile.