Getting her for free is not a big of an issue, saving coupons is a thing, although throwing her at us right after lucky dice was.... sneaky :x the same with refines in the rewards besides tenten, right after refinement event :D

I recently discovered how great does water main with Mabui, 1010, Ao work. Highly recommended :D (all ninjas in team are commons in Kage, not that hard to get ;p)