Completed Sheena Build(almost)

out of curiosity, does she kill Infernal enemies with her aether or is she struggeling without triangle advantage?

That is identical to my Sheena set except mine is Res refined and she has Glacies instead but she does great. Really hard to kill her even with armor effective weapons! She’ll struggle to get kills without activating her special but she serves as a great chokehold unit to let ranged units attack from behind her.

First of all, +Res -Spd is essentially the best build if you're not looking to use her for Arena. So no worries there. Even if you're running her in Arena with these IVs it's still fine.

Second, not sure why you'd run a dual rally skill though if she isn't in Arena. If she is, then never mind.

It's a pretty generic build, and a pretty effective one. You can always swap off the S-slot for like, Close Def 3 or Panic Ploy, but there isn't much need. Sheena's mostly dictated by her weapon and B-Slot, so since you chose those already it's all constrained to some degree.

My sheena is almost the same than yours, the only difference is the iv's (+def/-spd) and the c slot (spur def/res).