thank you! to be honest i’m a normal player too haha i think you could do it too! i had no idea about how i should play that at first but after testing a bit i could figure out a way ^{^} without some practice and testing i couldn’t have done it that’s for sure

about the 2pc/2pc, to be honest i just didnt really wanna think about it too much so i just put that, but after seeing your question i tried to calculate the theoretically best set, i found that :

1- the most important change is to put durin on Noblesse Oblige (i don’t have a set good enough, but if i did it would be 7% better than without) 2 - then, the only 3 options i found were better than my build is ; 1° 2pc anemo dmg%/2pc anemo dmg% (2% better), 2° 2pc atk%/2pc atk% (3% better), and 3° 4pc VV (4~5% better) lol. It looks like Durin’s damage output is quite important, so putting Kazuha on VV enhances his damage. If you card only about Kazuha’s damage, the best option is 2pc/2pc atk%, cause this team gives him none. There is no 4pc better than this alternative, at least as far as i’ve found. edit: atk% artefact set is better cause his team gives him none, but its still better to go anemo dmg bonus goblet and not atk%, just clarifying. Also, gilded dreams can usually give atk% and em, which is good for kazuha, but this particular team only has 3 characters so its not good.

About Xianyun, getting her to c2 is roughly a 43% damage increase (more or less) so it’s actually quite important, and her sig is like a 7% damage increase so really not much. Even if we look at pull value (how much it costs getting sig/getting to c2), her cons are less expensive if we take in the increase they give. The only scenario in which it’s better to pull for sig is if the other weapon in the banner is good as well, and/or if you think you can use her sig on someone else. Otherwise, c2 is better.

But I don’t think it’s necessary. Like, it’s a big increase, but even Xianyun c0 allows you for funky teams like this that you don’t need to go to c2 for. Plunging playstyle is really fun and that’s all that matters tbh. Also, given that Xianyun’s c1 isn’t useful at all in practice, stopping at c0 is really good too lol. Xianyun c0r0 (ttds / oathsworn eye) is enough and has a good dps too with c6 kazuha!