https://www.youtube.com/watch?v=n1pKHrn_SeA
Ephraim barely won
That Nino is
good but
not great. -Res is good on her. +HP is not ideal, but not bad either. Now all you need is a team of buffers and you can enjoy dominance in the arena. Just so long as Nino isn't -spd or -atk, she should do wonders for you.
My opinions on your rolls, but first a caveat. You may want to keep all of the units, even if they're not that great. Skill inheritance may make the bad ones worthwhile.
3* Arthur +Def/-Atk
Abysmal.
3* Azama +HP/-Spd (do we care about Speed on healers?)
Yes, it actually matters. However, Azama's speed is not particularly stellar anyways. -Spd isn't great, but it's definitely usable. -Atk is ideal for most healers, including (especially) Azama since he does mostly flat damage with "Pain."
3* Beruka with +Def/-Atk
Terrible. +Def is good but she needs attack desperately because her attack score is actually a bit low.
3* Beruka with +HP/-Spd (I feel like these are both trash rolls)
This isn't ideal, but it's not terrible. It's usable/average. Her speed isn't fantastic anyways.
4* Camilla +Atk/-Res (pretty happy about this one)
Stellar/ideal.
4* Catria +Spd/-Res (could be good)
Literally the best possible outcome for Catria.
4* Donnel +Spd/-Res (kind of crap with the Brave Lance)
+Spd puts him at 27 speed. While that's pretty lousy, it prevents him from getting doubled by foes with 30-31 speed. So this isn't actually that bad.
3* Donnel +Spd/-HP (trash)
Yeah trash him.
3* Donnel +Atk/-Def (probably my best Donnel)
Yes this is definitely your best one. Whether you want to use this one or the 4* one (or neither) just depends on what kind of feather investments you want to make I guess. It also depends on whether you have better blues. Donnel is not the greatest blue lance anyways.
3* Est +Atk/-Def
Solid.
[/quote]4* Gunter +Res/-HP[/quote]
Mediocre but workable.
4* Gwendolyn +Atk/-Def (I don't know if this is good)
It's ok, but not ideal. -Spd is the best on her.
3* Gwendolyn +Spd/-Def
Bad.
3* Gwendolyn +Res/-HP
Decent but I'd go with the 4* +atk one as that's 2,000 feathers less investment for still decent results.
4* Merric +Def/-Res
Merric is an underrated character mainly because most people prefer Nino and Julia. Merric's max stats are higher though which means that if you do as well with him as with the others, you will get a higher arena score off of him. +Def, -Res is actually really good on him. His physical defense is the higher of his defensive stats anyways. +Def will allow him to do better against the likes of Takumi.
3* Oboro +Spd/-Atk
3* Odin +HP/-Atk
4* Raven +Spd/-Atk (again, I feel like this is bad IV with a Brave Axe)
All bad.
4* Subaki +Spd/-Def (I think this is a pretty good roll?)
Not ideal, but not too bad. Subaki actually has high defense and mediocre res, so -Def isn't really optimal on him. However, +Spd is pretty good on him as his speed is in a decent tier anyways. +Spd will let him double a lot of foes which he normally would not.