My attempt to estimate how much stats MC need to high diff Arlonb top. MC will fight with Dao form, because they supposedly equal to each other and don't increase stats, only overall fighting abilities. Everyone use infusion.
Top 10 of MC Sect:
1. Yang Gan. = Around 20k-22k
2. Tang Bo = 18k-19k
3. Liu Jiawei = 16k-17k
4. Yang Mu = 14k-15k
5. Chu Muchen = 14k-15k
6. Fu Yinuo = 13k-14k
7. Su Da = 12k (surprisingly low level for both Su twins)
8. Su De = 12k
9. He Gang (before Qi) = maybe Su twins level, probably lower. With qi around Tang Bo level (imho). But because of his art that target enemy qi, probably more dangerous to MC than Tang Bo
10. Tang Ruo (Late Houtian+sword+without transformation) = 10k-11k. (lh+sword+transformation) = 14k-16k. (Peak Houtian+sword+without transformation) = 14k-15k. (ph+sword+transformation) = 20k-21k
Honorable mentions:
Long Chen = very hard to scale. MC need either fight him long enough to exhaust his regen or have massive explosive power to kill him before he can regenerate. I think MC with 20k can kill him
Xiwen = I think MC with 9k-10k stats can kill him, unless he has hidden ace from rogue clans
Blood Hunter (full power) = for me very hard to image than he only slightly weaker than Yang Gan. Unless he has ace that we don't know due to Mei poison blocking it use (like transformation), I don't see him beating 20k MC
Prince Song = probably Yang Gan level but minus 1k-1.5k. He dominate Yang Gan, but he has 2 rogues with him. So MC need 18.5k-21k
Young Wu Chao (PH) = was absolute genius of his generation and should be strongest among them. But we have no idea how strong was his generation. Tops of his time might be on par with Yang Gan, but can also be Su twins level. Overall, only from my opinion, he was on Lui Jiawei level, so 16k-17k
MC with Devil = almost kill ex, but guy was clearly not expected this. With Dao can damage and kill many if not all ex, but his stats still too weak to fight them. So fast enough xiantians can just speed blitz him before Devil can cast any art. So I think MC with 40k-50k agility can kill him (teleport will not work, because Devil will either block out void arts or use them against MC)