A Lengthy Question about Tiki and Fliers

Hello everyone, I am here to ask two questions but the second will be extremely long, so please bear with me ^^'

1. I have an ATiki as the Julia/Deirdre counter on my all-dragon team. I've never met any Naga tomes when using this team tbh so I can't judge her performance yet. She is +res/-spd with stat spread 45/47/20/35/31 and the following skills:
Lightning Breath+ Res refined
Swap
Bonfire
TA3, QR2 (waiting for fodder), Drive Spd 2, DD1 SS (will upgrade it soon).

The basic question: keep Lightning Breath or use Breath of Fog?
Some more considerations:
-Should I swap TA for Warding Breath? She doesn't have to tackle Falchions because I have Mama Corrin and her son for it, and Fae eats Reinhardts for her. I am F2P and don't have spare Ikes though.
-Should I keep Bonfire or use Aether? (I also have Ignis on her IIRC)
Feel free to comment on her other skills as well.

2. Flier teambuilding
So I have enough units to create two flier teams but unlike cavaliers, I still can't figure out the correct composition for each team. I generally like my teams to be color balanced, have one physical and magic tank each (minimum), and usually aggro in player phase. So here are the winged squires:

Red fliers
Caeda +spd/-def 39/44/43/24/37
Wing Sword (Effect refined), Reposition, Glacies
Fury 3 (will swap for DC once I have it), Desperation 3, Fortify Fliers
Def Ploy 2 SS

Elincia +spd/-HP 32/45/40/24/27
Amiti, Reposition, Luna
DB3, Flier Formation 3, Goad Fliers
Speed+3 SS

New Year Camilla +atk/-res 45/50/35/35/20
Kadomatsu+ (Defense refined), Swap, Ignis
Spd/Def Bond 3, Renewal 3, Ward Fliers
No SS yet

Blue Fliers
Cordelia +atk/-HP 36/51/35/17/20
Brave Lance+, Reposition, Glimmer
LnD3, Hit and Run, Fortify Fliers
No SS yet

FMorgan +atk/-HP 34/50/30/16/33
Blarblade+, Reposition, Iceberg
Mirror Strike 2, Desperation 3, Goad Fliers
Res Ploy 2 SS

Green Fliers
Gerome -/- 48/55/28/37/22
Poleaxe+ (Effect refined), Swap, Bonfire
Fury 3, Renewal 3, Goad Fliers
No SS yet

Flyzura +spd/-res 42/47/44/25/25
Hagoita+ (Speed refined), Sing, Moonbow
Fury 3, WoM3, Hone Fliers
Guidance 2 SS (planning to change)

WIP (both designed to counter bows):
Legend Ryoma +def/-HP 38/50/39/31/20
Raijinto, - , Glimmer
Kestrel Stance 2, Vantage 3, Goad Fliers
Iote's Shield SS

FGrima +atk/-res 40/51/35/30/22
Expiration, Swap, Bonfire
Dragonskin, Guard 2 (waiting for fodder), Goad Fliers
No SS yet

Some bad IV units to consider:
Summer Corrin +spd/-atk 34/40/37/22/26
Still a blank canvas ^^'

Myrrh +spd/-res 42/55/32/39/31
Great Flame, Reposition, Bonfire
Fury 3, QR 3, Hone Fliers
If she is used, Iote will be given to her.

Bow Hinoka +HP/-atk 41/43/38/17/29
Warrior Princess, Draw Back, Luna
Atk/Spd Bond 3, Flier Formation 3, Flier Guidance 3
No SS yet

The only combination I have tried and tested is Azura-Morgan-Caeda core (bladetome mage and her supports) and another flier. Gerome works especially well with this core. Should I keep Morgan's Blade or switch back to Serpent considering she and Caeda may have to split to take magic?

The other team still is in the gray zone: I plan for it to be a full goad team, but for some reason Elincia and Cordelia end up fighting alone all the time, without adequate support.

Any help in arranging these units into two teams preferably fulfilling the criteria I set above (balanced color, balanced tanks) will be appreciated. Feel free to suggest skills for them as well, but I will work on their skills based on fodder availability. Please note that I am F2P and don't chase Arena score that much, so feel free to suggest cheaper builds. And one more thing... should I pull Flier Nino to complete my team?

Thank you very much everyone ^^