u/MeIzMrLolol

Which would be a better investment for my teams if i plan to alternate in using her?

Push for E2 cyrene or try to get her lightcone first

How much does her lightcone affect her overall impact in a team?

Im planning in getting her eidolons or lightcone for my mono remembrance team or my phainon team

I have:
e2s1 Cas and E9, e1s1 hyacine, e0s0 cyrene
E0s1 phainon, e2s0 cery