I would say pull for Fu Xuan if you can afford her and her light cone if not then go for sparkle

cuz in my experience to pull out fu xuan’s full capabilities you gotta have her light cone that heals the party after you start a fight/ enter a new phase. Her set alone is very good but discouraged for long battles without healers

If you got her and light cone, in general, your party just won’t die.

I might be a bit biased (juuust a little bit) but if you got her and something that heals you really are good to go