In my journey to get a Amelia(for Armor March) i made my longest use of orbs 100 aprox.
These are the more significant units, but even the 5* dont have good IVs.
some of these can be worth it??
specially Amelia
any suggestions??
5*s
Rhajat +Res -spd
Hector +Res -spd
Tana +Def -spd
Amelia +Res -Def
Ike +Atk -Def
4*
Camila +spd -HP
Fae Neutral
Frederick +Atk -Res / +Atk -HP
Titania +Atk -HP
Lvl up all your 5 star unit to 40.these units are extremely viable for arena assault.Also try to make Fae and Fredrik(best iv) 5 star if you have enough feathers.Now that YOU have two 5 star armor unit you should try to make an armor emblem..Note that Ike is one of the best sword unit in the game.(iv doesn't matter for him).
Pokemon GO
Fire Emblem Heroes
Fate Grand Order
Dragonball Legends
Dragalia Lost
IV Calc
Heroes