Chronicles of The Primordial Wars

Besides Ceasar and Cha Cha, Shao Xuan also got another beast companion. It was something like a pterosaur? (not sure about the species though but it's something similar to that). 

Spoiler: Rain Tribe"Shao Xuan was shocked.

So, the way to pray for rain had been changed from the concept that “If you don’t rain, I’ll whip you” to “ask for rain and ask for punishment”. Were people in the Rain tribe playing whipping and SM games with the Rain God? But there was no rain even after the shaman was whipped!"
Hahaha I love the MC.   

Spoiler Questions:
What are the names of the other 6 tribes of the 7 central tribes? (I know the Flaming Horns was one of them)
What makes them unique or what abilities are somewhat exclusive to them?
Does the MC end up with the Shaman Girl only in the end?
Which tribes are their enemies before they became prominent again after Wan Shi tribe?
Really none from the named Flaming Horns tribe members die in battle?
What about the weather guy, what happened to him? 

Spoiler Questions:
What tribes were affiliated with the Flaming Horns tribe in the past before their split?
Are there deaths from important characters?
How does he become the leader of the tribe? Will there be any infighting in the tribe?
Is there any special reason why he can use the ancestor's power?
On the place where they isolated themselves, how is the revisit? Will they deal the stone worm and the king beast bat?
How did MC's romance even started?
Which tribes will ally with them? Which tribes can be considered threats the Flaming Horns? 

What is it called?

Also, I thought the crocodile was going to be one of them since there's a picture of them on the cover.. 

Is it the guy who became lackey of slave traders? Can't remember much and he's not relevant, so it means he died XD 

Yeah, He has a pre-historic bird towards the end 

What happens to the Drumming Tribe? Do they still keep in contact? 

Unfortunately the crocodile doesn't play big part in the story after its introduction. It is only mentioned a few times after. 

Did Shao xuan got any other beast companion? Is the crocodile one of them? Are there more?

Also what's the power level in the novel? I know there's junior, mid, and senior totem warrior, but are there higher level of power?

Thanks in advance!! 

Can someone spoil it to me about the identity of two thieves that stole Drumming tribe's treasure? I really can't stand them. 

As far as I remember the author don't explain which tribe that affiliate with flaming horn tribe at the past.
I don't remember which important one that death.
Nope he doesn't become leader but he becomes Grand elder (spiritual leader).
There is no in fighting.
Because he has stone power that brought him to that world and complet form accessories that left behind by tribe ancetor.
Yes they are back to live in that place again because the catastrop that split their tribe long time ago is about to strike again, so they chose to move back to their previous hiding place and live permanently there, which many other choose move near their tribe to.
The stone worm King is attacking them but the MC lead it by the nose and use it to make a bridges to cross the river and lead it back to the mountains where it was previously, as for giand bat King I don't remember much but they just left it be and make it restrict area if I'm correct.
MC don't have any romance hejist focus to unravel secret of the world and get stronger.
There will be many because their tribe is making alliance and set a new city for trade along the river.
There is none at the end because pretty much their tribe is the strongest they even train other tribes chief and elites warrior of other tribes that join their alliance.