Cheers for the replies regarding Lauren. I will save him as Spica fodder as it saves me 200 DC later and I'm close to buying her soon. That will give me Spica and Bashira plus CCed Daniela and Soma as back up if I ever want to run more archers.
I have Jerome and I consider myself damned lucky. I lack decent tanks (only have the single Leeanne at L50 - saw CCing Katie and Jerome as a higher priority) but I find Jerome fills that role well with support anyway.
What I need to do is farm Heavy Infantry as that is the resource I lack across the board. Hopefully that will happen soon. But more archers right now will be needed for CCing Spica anyway.
As for Rikka mine is currently -2 cost and 3/10 skill