I'd say in a group setting dancer is fine as it is if your partner never dies and standard step buffs never drop (which they shouldn't) freely take 5% of your partner's dps and add it to your own. This ofc doesn't account for other party buffs you or anyone else applies but with the above scenerio there is no way they have had that dps without you, so own it

The only real problem in solo instances is espirit you lose a good way to generate it so you cannot Saber dance as often but this is hardly a deal breaker since instances feel tuned around bad rng and low espirit gain. The Eulmore instance for example i had 0 procs outside flourish and got enough for Saber Dance twice(i really mean it, it was horrible), against final enemy in it yet i still won.

While you can target npcs with closed position they ofc don't do things as much as a adequate player would so resource generation is still a bit slow.

I feel a good change to Espirit generation would be double the chance you can earn espirit for yourself but keep it how it is for party members under standard/techncal buffs.

Also make Saber dance ogcd with 1s recast pls just pls it being a gcd skill feels wonky >_<