I've been getting somewhat good results using Lucina, Reinhardt, Cecilia, and Leo on the 7-battle Tempest maps, but sometimes Leo (+spd/-res) fails to one-shot greens/colorless. Is it worth sacrificing 20k feathers to 5-star an extra Tharja so I can pass her tome to Leo?
The mass battle simulator seems to shows Brynhildr wins more compared to Rauorblade+, but that doesn't factor in buffs from running a 3-horse emblem team.
So what do you guys/gals think? Stick with Brynhildr, or spend 20k to get Rauorblade+ ?