STARSEED: Asnia Trigger

Sia is a great bruiser or sub-tank, but ofc, she's currently on a rate up banner so she does have promotion advantage.
Blossom Itus… you just never switch to Awake. Those shields are better than heals in most cases.
Patricia… yum. AOE DPS and the CC can be clutch when pushing high deficit.
Elina - you mostly still want her on Awake. I thought I'd want her Atk/Def shred on Blossom, but at high deficit, a half dead unit will die to an Atk debuffed enemy. That said, this'll probably change at end game when you can boost EP charge rates.
Shale - HP regen and very clutch CC.