It's a year 2015 5* stone again. You can't pick Pink Miko this time. But you can choose Green Bristlegrass. she is a not bad Evade+Counter.

Now, for me, the question is... Dahlia or Rose? Dahlia is good for Debuff team (even if I don't have enough girls to make a decent debuff team) but Rose as more waifu power... even if she is less usefull anyway. Hard to decide...