First of all, thanks to the book friends for correcting me. Shirou and Kiritsugu are both B, I misjudged this. But Araya's grip is indeed fine, it is not relying on the offering hall but simply relying on his own hands. This is clearly stated in the novel of "Kara no Kyoukai". You can go and have a look. I have confirmed the texts of FZ, FSN and Kara no Kyoukai. Although Araya's performance in strength is very little, it can be seen from the few words that he is indeed worthy of B. (The skull is very hard, and it is not easy for ordinary people to break it even with a sword.)
Regarding the problem of the Indra's Thunder barrier you mentioned, that is not necessarily true. Although the term barrier originated from Buddhism, it is now mostly used by magicians and is no longer purely Buddhist. In addition, Indra's Thunder is not in Indra's hands after all. Just like the war spear of Ishtar listed earlier, it is only the original text without the added merits of later evolution. Moreover, I have already said at the end that Araya was blocked by the relic. There is a concept that needs to be clarified. Most Buddhist instruments are full of the meaning of subduing demons. Indra's Thunder can smash the dragon, but it is hard to say about smashing the relic burned by the monk. There is also a problem of compatibility between the mysteries.
In addition, do not underestimate the mysteries other than the Noble Phantasms. Although modern mysteries are fading, there are still many families and forces in the world that have inherited ancient mysteries, and these things are not inferior to the Noble Phantasms. No one knows which monk's relic is in Araya's hand. What if it is the Awakened One? With the Awakened One's status, it is no problem for him to beat Indra directly.
Regarding the problem of fighting against average servants, Araya is still no match. The general standard of average servants is gun brushes. Araya's action method is too monotonous. If he encounters a gun brush, not counting Red Rose, he will definitely lose. The brush can also kill him with a flat attack. After all, although Araya has a good body, he can't keep up in other aspects. Servants have various skills, and they also have the ability to resist magic, which is like the nemesis of magicians. Don't underestimate servants, they are a group of monsters. Erye has a lot of trump cards, that is, the strength to fight against average servants. Araya can't beat Erye. Let me reveal it first. Erye's current strength does not need to be strengthened by the Command Spell. If both sides show their cards, it is on par with the average servant. Against Araya, Erye only revealed an Indra's Thunder. If he used a sickle shield, Araya would have knelt long ago.
Finally, I have to complain that if I don’t collect Shiki-sister’s new chapters, my subscription will drop by almost 200, which is miserable. As a result, I really don’t want to write some things anymore.