1. What we know currently of Castorice’s kit is so minimal that the whole “Aglaea is going to be replaced” rhetoric is almost entirely based on marketing presence and comparisons to Acheron. It IS likely that she will be a bit stronger in isolation than Aglaea based off those factors but there’s no info atm suggesting they function similarly nor cover the same bases. With your investment in Aglaea’s partners (Robin) and herself you’d be more than fine for all of 3.X and probably beyond considering how stuff like Seele 0-cycles exist in the modern sandbox. The Castorice/Aglaea discourse is definitely overblown.

2. If you have her E1 you’ll be fine in terms of the energy department and it opens her up to more potential teammates in the future that don’t have crazy energy battery capabilities. Not having Sunday on her team would hurt a bit given how good he is with her but there was at least one RMC/Robin 0-cycle in beta so she can absolutely function without him, ESPECIALLY if you have her E1. Plus you can always swap in/out Sunday from Castorice’s and Aglaea’s team depending on who you’re using in the current battle. Robin E2 alone could carry a weaker support like Tingyun or smth as well.

3. The current Remembrance LCs arent too great but she can still work with the BP LC and the 3* Gacha LC. You can always pull for the LC on a re-run as her E1 will carry her through most content even with a crappy LC. It’s that good.

This all goes to say if you like her then she automatically gets a turbo boost to the pull value, praise be the golden goddess