Slesk

I thought their names made it obvious?

Lol, lets not forget his true Venerable appellation of Heaven Refining Demon Venerable.

Of course that is ignoring the power up that showed up later the Tenseigan, but no Hyuga seems to be able to access that power up so it's not the same as the Mangekyō which any sufficiently traumatized Uchiha could access.

Idk, there was only one Byakugan user mentioned that was considered very strong besides Neji and that was the literal bastard dude mentioned in the Itachi novels who was said to be similarly talented compared to Itachi but that was more him being talented than the Byakugan carrying him.

Well it was more than bug control towards the end with more people control as Khepri due to what she asked Panacea to do to her Shard.

Is he? Wasn't he just a Lightning Mage before getting the Lacrima implanted?

Hasn't that been his goal since long ago? Why does he flip flop so much?

God the MC is such a retard it's annoying as all hell.

I think the first option is wrong? Don't they become 'fierce beasts' and have to continue cultivating with a bottleneck at each 100,000 years which comes with Heavenly Punishment?

Also the Clans are their own independent forces.