So there was a brief question that I posted as a comment on Moon Blade, but I wanted a little more indepth answer. So let's say that there are 2 tile douluo level spirit masters, one with Judgement Sword (like Chen Xin) and one with Moon Blade. Both have mastered their spirit to the utmost, their spirit rings are optimal and their rank is more specificly 99. No Domains. No Spirit Bones.
Which one would win in a measure of attack power?
Which one would win in terms of spirit quality?
Which one would win in a all out fight to the death?
The battle can go either ways, really. Both Spirits seem to be on the same class so it would come down to what their specific skills are and the potential of the users. We are pretty much doing a Deadliest Warriors here.
I'm saying that Judgement Sword is a lot more powerful than Sword, but Judgement Sword and Moon Blade are difficult to distinguish. There is one convention in the SL universe that applies here: "Described" spirits (e.g., Judgement Sword) are superior to the "generic" spirits (e.g., Sword).
So the question is whether "Moon Blade" is superior version of "Blade", or if "Moon Blade" is the generic spirit of its own category (i.e., "Moon Blade" belongs with "Sword" and "Blade", and there can be superior "Superduper Moon Blade" spirit). Neither of these spirits include the word "Emperor", nor do they—to my knowledge—facilitate innate domains, so the only way to compare the two in this theoretical scenario is to rely on the naming convention, which happens to be inconclusive.
I'm asking because I remember that Chen Xin uses some domain-like techniques, like the "Kill" symbol and the Manhua-only control of black-iron, but I don't recall any mention of domain. And without its description—even if it turns out that Chen Xin indeed possesses a domain—we cannot tell whether it comes from his Spirit, one of his Spirit Bones, or even from some trial.
We should definitely include the possession of domain reference on Chen Xin's page if you find it, but it's relevant to this thread only if this domain comes from the Judgement Sword.
I added the Domain part on his page as soon as I read it. But I'm confident that it doesn't come from a spirit bone. They used it as a example that not even Poison Douluo and Bone Douluo didn't possess a domain but Chen Xin Did, and no other that Tang San possessed 2.
I know you added it (it's in the history of that page), but there is no reference there either. Basically, you're relying on something you wrote yourself, which isn't entirely convincing without any reference.
Why exactly are you confident it doesn't come from a Spirit Bone?
EDIT: Thinking about it, domains actually aren't all that rare. Anyone can attempt to gain the Deathgod Domain (and other like it) and many have successfully obtained it, other domains are bound to hereditary Spirit Essences (e.g., Angelic Domain, BS Domain), and there are even few cases of Spirit Bone based domains. Frankly, there is a whole bunch of them. =P
I went from 190 - 204 and the only domains mentioned were the Angelic Domain, the Deathgod Domain, and the BS Domain. There was also the comparison of Vast Sea Cosmic Shroud to a domain, but no mention of Chen Xin possessing or using any domain. If there is any such statement, it must have been earlier in the story.
You're right. You should add the reference to the relevant page while it's fresh.
Regardless, as I've mentioned above, this doesn't really clarify the issue. There is no information about the domain so it could just as easily come from one of his Spirit Bones, his Spirit, or it could be an acquired domain. Considering the lineup of domains in the story, the mere fact that they draw a connection between "having a domain" and "being a Title Douluo" in this situation suggests that Chen Xin's domain—whatever it may be—doesn't come from his Spirit. All cases of Spirit related domain manifested long before the individual reached rank 90. Though that may just be a representation issue.