Xu Jin asked this because he had already used Starlight Transmission to inquire about it from his senior at the National Taoist Institute, Wu Dong.
Top-grade Transcendence Pill, like the Mental-locking Golden Pill, was not available in the market; it was always in demand but never in supply and could only be exchanged through Taoist Merit.
The exchange price for a top-grade Transcendence Pill was eight hundred Taoist Merits, but in the Taoist Institute, different ranks received different discounts.
As for the Mental-locking Golden Pill, it was even rarer; the exchange price within the Institute was two thousand Taoist Merits, but it remained in a state where it was priced but not available.
Unlike the top-grade Transcendence Pill, as long as you had Taoist Merits, you could exchange for it.