So I've been thinking of ranking my 5* BWDO, been scouting for t1a but then this happened.

So I'm very happy, she's super fun to play but I know very little about her.
I've watched a few videos but all I understand is get as much widow's insight as possible and throw off sp2 or sp3? Any BWDO players able to shed some insight on her? Any particular matchups/nodes she's good for etc. And if she needs her dupe?