Alright, so OG Idunn got jealous of her Spring incarnation and pitybroke me on the Spring 2020 banner of all things. First-world gacha problem time, because I already have her at +Atk…and this "pity"breaker shows up with a highly coveted Resistance superboon.
So…should I merge best dragon into this +Res copy to give her ideal mixed bulk? Or keep my current +Atk boon for more overall damage? I want her to be able to run either PP or EP builds as optimally as possible depending on team comp. I had already built my +Atk OG Idunn to be either dedicated PP or EP with DC + either Bold or Vengeful Fighter + Armor March, while my +Res Spring Idunn is a dedicated mixed phase tank with DC + Special Fighter + QR. She probably still scales well with defense-scaling specials and Aether regardless of boon, so understandably I might be splitting hairs over this decision, although Aether scales a bit better with +Atk and Bonfire/Iceberg/etc with +Def or +Res; I’m running Aether on mine.
Instinct is telling me +Res is smarter overall even with Aether as her special, but if there are good reasons to keep +Atk I’ll gladly hear them out, thanks.