planar and LC recommendations?

My pre-made build for her has lushaka but im wondering if she's better off with vonwacq and for the LC im planning to get her S1 after i pull her E1 but im wondering how good it is for her or if she's better off running DDD

All of this is in context for a phainon team (E2S1 phai, E0S5 DDD sparkle and E0S1 sunday)