Spelloyal

Not really. It depends on the level of the martial souls. Both dual martial souls always have the same level of talent, but that doesn't mean they are both high-level talents. If they're unlucky, they could both be trash.

The translation is terrible, the kind of bad MTL that doesn't even go through minimal revisions to fix the characters' names, and the story itself is one of those average fics that you would read to kill time due to one or two points of interest. Since the fic itself is average and the translation is very bad, in addition to the rare updates, I do not recommend the fic.

I agree, not everyone can be a reincarnator with a unique cultivation technique and stumble upon a mythical herb garden like Tang San.

They use it to create spells, but just as you don't need to know programming to use or master Office, you don't need to know arithmancy to use or master a spell.

At least it's not frequent and doesn't have the blatant racism of other Chinese fics. I would be very happy if every Chinese fic was like this.

It's worth mentioning that Heroes actually live in the Throne of Heroes rather than being just data. Upon death, a hero's soul ascends to the throne. Of course, this being the Nasuverse, this includes numerous exceptions such as heroes who aren't real in the Nasuverse where the throne pulls a compatible soul and pushes the legend into it.

It's been a long time since I watched it, but isn't his recovery due to the super doctor who always takes care of him?

We have Hogwarts Legacy as an example that insanely old vaults exist and cannot be opened without the key. In addition, we have examples of magic involving blood and even a protected cave whose door could only be opened using Voldemort's blood. So although the Inheritance test is fanon, there is a certain basis behind it and it is possible to imagine it as something viable if, for example, it were necessary to register the lineage when creating an account at Gringotts. However, I do not think that a lineage test is in the interest of either the bank, the pure-bloods or the Ministry, which would justify the inheritance test not existing even if it is possible with canonical magic (in addition to J. K. Rowling simply not wanting it). For the Ministry, this could result in descendants of Squibs appearing to contest an inheritance or suddenly becoming a figure of great influence for being a distant descendant of someone important. It was bad enough that Voldemort claimed to be a descendant of Slytherin, it would be even worse if this could be confirmed and a distant descendant of King Arthur or Merlin turned up gathering followers. For Gringotts, this would result in people taking money from vaults and possibly insanely old vaults that would eventually become the bank's possession being opened by heirs who appeared out of nowhere. Furthermore, with the frequent Goblin wars, it is also possible that the Goblins take advantage of the wars to loot various abandoned vaults and having possible heirs turn up means fewer abandoned vaults.

He has a vault with piles of gold at Gringotts

Dimension Lost is a defensive Gear. It's less about killing a god and more about not even the gods can touch you.