She's a normal rare in seal treasure, there was a time on my server that people were pulling her left and right. You c*so piece her over time in survival trial from breakthrough cards or as a random fragment drop in other treasures (no idea which though, I never paid any attention to that ninja). She's also pretty often used as a filler ninja in events, like 10point redeemable in lucky board, because her only use is basically hanzo sa(which u can do without her). She scales badly and have no skillbooks so far in china, so theres literally no reason to use her, except having her for collection purposes or using her to make a crazy high combo for some reason.