Thanks guys!

I think I will use my two xp cans on Katie (solid first CC) and Cloris (for Phalax 2 and Thursday daily). If all goes well I will be able to 1* Castle Retake and push on to Phalax 2. Then my third CC can be Bashira since I will be able to CC plats. Iris, Leeanne, and Soma will follow.

Still interested in hearing your advice on who to use the two Rainbow Spirits on.

On a side note I was unable to farm a second account with a black after 50ish tries, but I got a Sabinne last night and I've been farming that account. Do you guys think she is good enough to run a second account for. Seems to me that having a guaranteed plat Assist seems nice.

One more time Thanks for all the help guys!